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Operator
Good afternoon. My name is Abigail, and I will be your conference operator today. At this time, I would like to welcome everyone to the Cambium Network's first quarter 2021 financial results conference call. All lines have been placed on mute to prevent any background noise. After the speaker's remarks, there will be a question and answer session. To ask a question during the session, you will need to press star 1 on your telephone. Please limit yourself to one question and one follow-up question. Thank you. Mr. Pierre Schumann, Senior Director of Investor and Industry Analyst Relations, you may begin your conference.
Abigail
Thank you, Abigail. Welcome and thank you for joining us today for Cambium Network's first quarter 2021 financial results conference call, and welcome to all those joining by the webcast. Atul Bhatnagar, our President and CEO, and Stephen Cumming, our CFO, are here for today's call. The financial results press release and CFO commentary referenced on this call are accessible on the investor page of our website, and the press release has been submitted on a form 8K with the SEC. A copy of today's prepared remarks will also be available on our investor page at the conclusion of this call. As a reminder, today's remarks, including those made during Q&A, will contain forward-looking statements about the company's outlook and expected performance. These statements are based on current expectations, forecasts, and assumptions. Risk and uncertainties could cause actual results to differ materially. Except what is required by law, Cambium Networks does not undertake any obligation to update or revise any forward-looking statements for any reason after the date of this presentation, whether as a result of new information, future developments, to conform these statements to actual results or make changes in Cambium's expectations or otherwise. It is Cambium Networks' policy not to reiterate our financial outlook. We encourage listeners to review the full list of risk factors included in the safe harbor statement in today's financial results press release. We will also reference both GAAP and non-GAAP financial measures and specifically note that all sequential and year-over-year comparisons reference non-GAAP numbers except where otherwise noted. A reconciliation of non-GAAP measures to GAAP measures is included in the appendix to today's financial results press release, which can be found on the investor page of our website and in today's press release announcing our results. Turning to the agenda, Cambium Network's President and CEO, Atul Bhatnagar, will provide the key investment highlights for the first quarter of 2021, and Stephen Cumming, Cambium Network's CFO, will provide a recap of the financial results for the quarter and our financial outlook for the second quarter in calendar year 2021. Our prepared remarks will be followed by a Q&A session. I'd like to now turn the call over to Atul.
Abigail
Thank you, Peter. The momentum continued to build for Cambium's business, as our vision as a high-performance yet affordable global wireless infrastructure leader for broadband communications accelerated during the first quarter of 2021. During the last week of January, Cambium Networks shipped our 9 millionth radio since becoming a standalone company. Interest in fixed wireless broadband solutions is becoming mainstream as performance matches that of fiber. and the attractive cost of ownership for our solutions make Cambium a competitive and economically superior solution for wireless infrastructure projects around the world, propelled by increased government spending. Fixed wireless broadband is a critically important networking infrastructure to connect our local communities. If it can be a wireless solution, it will be a wireless solution because of ease of installation and operations. We are at the start of a new era of end-to-end wireless speeds equivalent to that of fiber. Our multi-gigabit wireless fabric can deliver fiber's performance and reliability at a fraction of the cost. Our recently launched 60 GHz CN wave solution is shipping in volume with increasing demand, and our forthcoming fixed 5G 28 GHz millimeter wave products, with proof of concept arriving during the middle of 2021, and fall for volume shipments will further accelerate this trend as we reach new customers and enter new markets demanding higher broadband performance at the edge of the network. For the first time in Cambium's history, we will purposefully compete in urban markets in a meaningful way as existing networks upgrade infrastructure and new high-speed networks proliferate. with more cost-effective technology provided by Cambium Networks. Cambium's significant new product introductions combined with increased government funding around the world will benefit our financial results for many years into the future. Turning to the results of first quarter 2021, we achieved a record revenues of $88.5 million above the high end of our outlook of between $81 to $85 million. Non-GAAP diluted EPS of 41 cents also exceeded the high end of our outlook of between 30 and 34 cents per diluted share. We delivered these outstanding results as we have transformed Cambium into a more agile company as we continue to work remotely during the COVID pandemic. Taking a look at revenues across our different product lines, Within our point-to-multipoint PMP business, we had record revenues increasing 7% sequentially and up 66% year-over-year as we continued to see strong momentum in network traffic, increased demand for our CBRS solutions, and solid demand for new product introductions. We believe we are taking share from both larger and smaller competitors as we expand our portfolio of solutions offering industry-leading spectral efficiency, scalability, quality, reliability, and attractive economics for our customers. The point-to-point PTP business had better than anticipated results during Q1 2021, growing 4% quarter-over-quarter while improving 33% year-over-year on higher demand for backhaul. We had record results for our enterprise Wi-Fi business, which continued to recover from COVID growing 11% sequentially and increasing 6% year-over-year during Q1 2021 due to the expanded growth of Wi-Fi 6 solutions and record revenues for our cloud-savvy CN matrix enterprise switching products. Looking at some notable customer wins and new product developments. In North America, we had multiple wins for our new 60 GHz CN wave solutions. Alaska Communications, a service provider, is planning to offer up to 1 gig speeds to select residential locations in Anchorage and Fairbanks. Cambium's solution was selected to work in conjunction with the existing fiber networks, where new fiber construction is cost prohibitive, and Cambium's technology allows for delivery of service to neighborhoods more quickly. Also in Alaska, Cambium won a residential deployment at a military base using our 60 gigahertz CN wave technology. Within our PTP business, a large service provider delivering high-speed internet and voice services to six states in Midwest and Southwest selected our PTP850 as they seek to expand and fortify their network. One of the larger RDOF winners, which is a new customer for Cambium, is building out their commercial network with the use of Cambium's PMP450M and our EPMP technology. The customer selected Cambium for our superior performance, reliability, and the ability to scale with their business. Another significant win for Cambium was with an NFL city in the southeast for a smart city project. The city selected Cambium's 60 GHz CN Wave for Wi-Fi backhaul and our CN Pilot E700 for outdoor community Wi-Fi access. Cambium was selected by customer for our CN Maestro wireless fabric management, reliability, scalability, superior performance, and value. In enterprise, a large MSP based out of the Northeast selected Cambium CN matrix switching products for deployment in an assisted living and healthcare facilities. Cambium was selected for its simple, reliable, and secure cloud management platform, as well as policy-based automation. Cambium's first mover status with the FCC's 3.5 GHz CBRS spectrum continued to have momentum for the sales of our PMP450 products and our SAS service in both the U.S. and its territories. Our full end-to-end solutions include high-performance radios, over-the-air CBRS upgrades, and cloud-based software solutions. In April, we released software updates for support of priority access licenses, PAL, multi-grant support, once they become online, providing another layer of differentiation from competing LTE solutions. Further enhancements to our CBRS platform will occur in June, including optimized alternative channel algorithms. As of today's call, we now have over 90,000 devices managed by our CBRS SaaS service. an increase of over 19% since we reported last quarter. In the Europe, Middle East, and Africa region, EMEA, the strategic wins from Q1 include, in Spain, we have a few larger wins to share. One of Spain's and Portugal's leading nationwide fiber and mobile network operators selected Cambium to launch their high-speed broadband services across the interior of Spain and Portugal, where deployment Deploying fiber is cost prohibitive. They selected our PMP450M and enterprise switches, as well as CN Maestro X. This is the first sale to a nationwide carrier of CN Maestro X since the product's release in Q420. Also in Spain, we are seeing a gradual recovery in the hospitality market and have closed a high-profile enterprise Wi-Fi win at a five-star luxury resort the Marbella Club Resort on the Mediterranean coast. The resort selected Cambium's full suite of hospitality solutions to deliver high-speed wireless connectivity across the resort to cover guest rooms, outdoor recreation areas, and high-density conference facilities using our CN pilot Wi-Fi. Wi-Fi-aware CN matrix switching technology, all managed by our CN Maestro software solution. In the U.K., We are another high-profile win for our 60 GHz CN Wave solutions and Cambium's enterprise Wi-Fi solutions at Wifinity, the UK's leading managed service provider of connectivity solutions for recreational holiday parks. Wifinity will deploy Cambium's 60 GHz CN Wave to provide high-speed connectivity for guests at multiple holiday parks in the UK. In-country staycations are popular this year due to travel restrictions between countries. Cambium continues its leadership position, deploying public Wi-Fi solutions across the European Union as part of EU's Wi-Fi for EU initiative, having already secured over 1,500 municipalities under the EU's Wi-Fi for EU program. This very successful government-sponsored Wi-Fi for EU program was extended by an additional six months. Approximately 800 to 900 municipalities in Europe still have not yet used their vouchers. In the Middle East, Saudi Aramco, the world's largest petroleum company, awarded Cambium its first project to backhaul oil wellheads and security data for its production operations. In Africa, the Orange Group's Ivory Coast operating entity selected Cambium to upgrade its high-speed broadband network. The wind displaced one of our closest competitors with the selection of our ePMP Force 200 technology due to ePMP's superior performance and Cambium's superior technical support. In the APAC region, we had a sizable enterprise Wi-Fi 6 win at the Melbourne Convention and Exhibition Center, which is replacing end-of-life of a major Wi-Fi vendor with Cambium's XV3-8 access points to establish connectivity of their back office operations. Cambium was already powering Wi-Fi in the front office areas, including the conference rooms and exhibition areas. Now the Convention Center is fully deploying Cambium in their front and back office operations. Altogether, 250 access points will be in operation. In New Zealand, StratNet, a large WISP with coverage across the country, decided to transition from a closed competitor to Cambium. We are now deploying the first project in the northern part of the country, funded by the New Zealand government's Rural Broadband Initiative to provide high-speed internet to the underserved areas. In the first phase, StratNet is deploying Cambium equipment to connect over 550 residential customers. Cambium was selected for overall cost of ownership, performance, and scalability. In the Caribbean and Latin America Cala region, we had a record-breaking quarter with revenues at $10.5 million, the second consecutive quarter that the region has exceeded $10 million in revenue. We had another large deal in Colombia this quarter with a Tier 1 service provider. As two different system integrators selected Cambium, using both our ePMP technology for the fixed wireless backhaul portion of the project to connect remote locations, and Cambium's enterprise Wi-Fi solutions, including CN matrix switches. They were selected for access at those sites. The operator, who has recently acquired significant new access spectrum, is expanding its capacity and coverage nationwide to bridge the digital divide. We won this project based on our reputation plus the functionality of CN Maestro cloud management software. In Panama, Cable Onda, owned by Tigo Millicom, purchased a significant number of 3 GHz PMP450 CPEs to service its expanding customer base in that country. Finally, we won the first phase of a public safety project with the state of Veracruz in Mexico. The state government plans to deploy 50,000 surveillance cameras using our PTP670 for transport and PMP450I for access. Cambium was selected because of the performance of our PMP450I and our reputation as a leading provider of solutions being used by numerous high-profile video surveillance systems in Mexico. Looking at new products since our previous quarterly update. During the middle of this year, we expect to have two significant new product introductions, First, our outdoor Wi-Fi 6 product, the XV2-2T, will be released this summer. Outdoor Wi-Fi is an increasingly relevant market in a number of verticals, and Cambium has a particular strength in this market, given our strong heritage in outdoor resilient radios. Second, our highly anticipated 28 GHz CNWave 5G product will be available for POCs around the time of our next quarterly earnings call. Initially, customers in the MER region will be our primary focus for our fixed 5G products. Our 28 GHz CNWave provides high capacity, scalable residential access, backhaul for outdoor Wi-Fi access points, 4G and 5G small cells, and video surveillance networks at a lower total cost of ownership than fiber. Utilizing the licensed 28 GHz band, which runs from 24 to 29 GHz spectrum, Cambium has benefits of the 5G NR standard, yet features the benefits of Cambium's fixed wireless products using our software-defined radio architecture, including ease of use and deployment, reliability, and management of our single pane of glass. Interest in our 28 GHz CN wave products remains high. and customer activity remains strong ahead of availability. Cambium received its first volume orders for its new 28 gigahertz CN Wave product platform from a major service provider in EMEA. We will have more details regarding this product during our third quarter earnings conference call. Also in our PMP and PDP product lines, Cambium's 60 gigahertz CN Wave for millimeter wavelengths make it possible to provide a city with high-speed broadband access by utilizing existing street furniture, such as street lamps, traffic lights, and utility poles. As a result, it can be deployed faster and more cost-efficiently than fiber broadband. We have several high-profile POCs in Silicon Valley that have selected Cambium to deploy gigabit backhaul within their cities. We are seeing traditional fiber operators such as Alaska Communications deploying hybrid networks using CN Wave to extend fiber to customer premises, accelerating time to revenue at lower operating and capital costs. We are very bullish on 60 GHz CN Wave solutions and have a time-to-market advantage over our nearest competitors. We continue to experience strong growth in accounts utilizing CN Maestro Cloud software, our end-to-end cloud-powered connectivity solution to manage the entire network from a single pane of glass. Total devices under cloud management in Q1 2021 totaled approximately 577,900, an increase of 10% from Q4 2020 and up 40% year-over-year. Turning to the channel. In Q1 2021, we expanded our channel presence by adding over 560 net new channel partners sequentially, and over 2,280 net new channel partners year over year, which represents an increase of approximately 6% sequentially and 31% year over year. Our first ever global virtual event called Cambium Connections was held on February 24th and 25th for our end customer and partner community. We had more than 2,700 people from over 130 countries registered, and the event was successful at attracting both new and existing customers as we shared our vision of where the industry is headed over the next few years. A replay of the event can be found on YouTube. Finally, I'm proud to say Cambium Networks were recently voted by the members of the Wireless ISP Association, WSPA, as the manufacturer of the year. I would like to thank our customers and partners for this honor. I will now turn the call over to Stephen for a review of our Q121 financial results and outlook. Thanks, Atul.
Peter
Cambium had record revenues of $88.5 million for Q121, above the high end of our outlook of $81 to $85 million. Revenues increased by 7% quarter over quarter, and were up 46% year-over-year. On a sequential basis for Q1 2021, revenues were higher by $5.7 million. The higher revenues were driven by record shipments of our PMP products, which grew 7% sequentially due to service providers continuing to scale networks driven by requests for increased capacity, higher demand for CBRS-compatible solutions, CARES Act and CAR-2 funding, and higher shipments of our new multi-gigabit products. Our point-to-point revenues performed better than expected, growing 4% sequentially due to increased demand for backhaul. Enterprise Wi-Fi solutions reached a new record and grew 11% quarter over quarter, driven by higher shipments of our new Wi-Fi 6 products and record shipments of our cloud-savvy switching products. Looking at revenues by geography, North America Our largest region represented 61% of company revenues, compared to 55% during Q420. North America had a record quarter with revenues growing 20% on a sequential basis, driven by PMP from service providers, a recovery in PTP, and strong Wi-Fi, including record revenues of our switching products. EMEA, our second largest region, decreased 13% sequentially, primarily reflecting softer PMP and PTP revenues as a result of timing of shipments and represented 21% of revenues during Q1 21 and 26% of revenues during Q4 20. Cala had another record quarter growing 1% quarter over quarter driven by a significant number of customer wins and the continued recovery in that region and represented 12% of sales during Q1 21. APAC decreased 11% sequentially and represented 6% of revenues during Q1-21 compared to 7% of revenues for Q4-20. Moving to our gross margin, non-GAAP gross margin of 50.1% decreased by 90 basis points compared to Q1-20. The year-over-year decrease in non-GAAP gross margin was primarily the result of mixed and higher freight and distribution costs due to component shortages in the markets. On a sequential basis, non-GAAP gross margin in Q1-21 of 50.1% was 110 basis points lower than Q4-20. The lower quarter-over-quarter non-GAAP gross margin were a result of product mix and higher freight and distribution costs due to component shortages in the market. In Q1-21, our non-GAAP gross profit dollars increased by $13.5 million to $44.3 million compared to the prior year, and improved by $1.9 million sequentially. Non-GAAP operating expenses, research and development, sales and marketing, general administrative, depreciation and amortization in Q1 2021 increased by $1.1 million when compared to Q1 2020 and stood at $28.8 million, or 32.6% of revenues. The majority of the year-over-year increase in non-GAAP operating expenses was a result of high G&A expense and R&D resulting from increased incentive compensation due to higher revenues. When compared to Q420, non-GAAP operating expenses decreased by approximately $300,000. The quarter-over-quarter decrease reflects lower R&D from the timing of regulatory costs, higher R&D tax credits, and lower sales and marketing expenses resulting from less spend for trade shows and other events. Non-GAAP operating margin was a record 17.5% up from 5% during Q1 20 and increased from 16% of revenues in Q4 20. We had another excellent quarter of profitability with adjusted EBITDA for Q1 21 at a record $16.5 million or 18.6% of revenues compared to $4.4 million or 7.3% of revenues for Q1 20. and up from $13.9 million or 16.8% of revenues for Q420. We see continued leverage in our business and remain committed to driving our adjusted EBITDA to our target model of 18% to 19% of revenues. Moving to cash flow, cash used in operating activities was $7.6 million for the first quarter of 2021, The quarter-over-quarter decrease in cash was primarily the result of payments for variable compensation and increase in accounts receivable as we had delays in receiving key components, thereby impacting the timing of shipments of final goods and delaying collections. A decrease in accounts payable and an increase in prepaid inventories as we secure strategic supplies resulting from higher revenues offset by improved earnings. This compares to $800,000 of net cash flow used by operating activities for the first quarter of 2020, and $15.1 million net cash flow provided by operating activities for the fourth quarter of 2020. Non-GAAP net income for Q1 2021 was a record $11.7 million, or $0.41 per diluted share, compared to $1.4 million, or $0.05 per diluted share for Q1 2020. a non-GAAP net income of $10.7 million, or 38 cents per diluted share for Q420. The higher non-GAAP net income compared to the prior year period was primarily due to higher revenues and gross profit dollars demonstrating improved leverage in our operating model. The increase in non-GAAP net income compared to Q420 was primarily attributable to higher revenues and gross profit dollars as we efficiently scale our business. Turning to the balance sheet, Cash totaled $51.2 million as of Q1-21, a decrease of $11.3 million from Q4-20. The sequential decrease in cash was primarily the result of payments for variable compensation, an increase in accounts receivable due to supply constraints affecting linearity of shipment, a decrease in accounts payable, and an increase in prepaid inventories as we secure strategic supply to support the growth of the business offset by improved earnings. Net inventories of $31.4 million in Q1 2021 decreased by $1.1 million year-over-year and decreased by $2.5 million from Q4 2020. Given the rapid growth in revenues and low entry levels, we expect a modest increase in inventories over the next few quarters. In summary, we are within line of sight of achieving our long-term target operating model by accelerating growth, gaining scale, and improving our operational efficiency. Our results demonstrate the tremendous operating leverage we have in our business. We continue to have improved visibility and predictability into our business. Given the global semiconductor shortages, we remain supply constrained, which we expect to impact our sequential growth during Q2 21. Moving to the second quarter 2021 financial outlook, please note the Cambium Network financial outlook does not include the potential impact of any possible future financial transactions, acquisitions, pending legal matters, or other transactions. Accordingly, Cambium Network only includes such items in our financial outlook to the extent they are reasonable. However, actual results may differ materially from the outlook. Considering our current visibility as of May 6, 2021, our Q221 financial outlook is expected to be as follows. revenues between 85 to 90 million dollars, non-GAAP gross margin between 49 to 50 percent, non-GAAP operating expenses between 30.2 to 31.2 million dollars, non-GAAP operating income between 11.4 to 13.8 million dollars, interest expense net of approximately 1.1 million dollars, non-GAAP net income between 8.6 to 10.3 million dollars, or between 29 to 35 cents per diluted share. Adjusted EBITDA between $12.4 to $14.8 million, and adjusted EBITDA margin between 14.6 to 16.4%. Non-GAAP effective tax rate of approximately 17 to 19%, and approximately 29.2 million weighted average diluted shares outstanding. Turning to our cash requirements, Paydown of debt, $2.5 million, scheduled debt, and an additional $19.6 million reduction in term loan principal as required by the excess cash flow provision in the term credit agreement. Cash flow interest expense, approximately $900,000, and capital expenditures of between $2.5 to $2.9 million. Looking at the full year 2021 financial outlook, revenues between $345 to $359 million, increasing between 24% to 29%, and adjusted EBITDA margin between 15% to 17%. I'll now turn the call back to Atul for some closing remarks.
Abigail
We continue to strive to achieve our goal of long-term top-line growth in the mid-teens and adjusted EBITDA in the upper teens as a percentage of revenues which we are presently delivering. Cambium has multiple revenue drivers to reach these goals, including our new gigabit wireless products, such as Enterprise Wi-Fi 6, 60 GHz, and in the middle of this year, 28 GHz millimeter wave solutions for fixed 5G wireless. We expect to continue adoption of CBRS-compatible solutions, as we can now add software-as-a-service to the list of growth drivers of 2021, with the inclusion of our CN Maestro X solution. Our profitability should benefit from increased scale in our business while we judiciously manage our costs, although we will continue to fuel new investments in R&D to maintain our technology edge. Finally, I would like to show my appreciation for our employees, partners, and customers for another outstanding quarter of results during these unprecedented times. This concludes our prepared remarks. So with that, I would like to turn the call over to Abigail and begin the Q&A session.
Operator
Thank you. As a reminder, to ask a question, you will need to press star 1 on your telephone. To withdraw your question, press the pound or hash key. Please limit your question to one question and one follow-up question. We stand by while we compile the Q&A roster. Our first question comes from the line of Rod Hall with Goldman Sachs. Your line is now open.
Rod
Yeah, hi, guys. Thanks for taking the question. So my first question was going to be regarding visibility. You raised it fully, your guidance here, and wondering if particularly your carrier customers are showing you a little bit more visibility because of the supply shortage. Are people ordering early? You know, what's going on with orders here and visibility from your point of view? And then I do have a follow-up to that.
Peter
Yeah, rather than Steven, I think overall visibility in our business has continued to improve really since we became a public company. And I think it's twofold. One is we've actually invested a lot of time, effort, and systems in – In improving that visibility, we have channel management tools and such forth that we can really gauge what the ultimate sell-through is and POS activity overall for our customers. I do think, to your comment, though, additionally, given the tighter supply constraints, we are seeing a tendency for our customers to place orders sooner and our distributors seeing visibility sooner from their customers. So I think that is improving things. We've been entering the quarter. We actually like to enter the quarter or exit sort of the first month of that given quarter with in excess of 60% of billings and backlog in place. We are way ahead of that, and since really Q1 of last year, we've seen that continue to improve. We're certainly north of 75% in Q4, and we're better than that in Q1, and we're tracking ahead of that in Q2. So visibility is getting better. And I would additionally say that visibility into future quarters is improving as well as those customers are putting longer-term orders on us. So overall, a much better picture for our view.
Abigail
Okay, great. Rod, if I could add one more point. The new products we have introduced, I think, are finding new applications, new customers. So the funnels are also getting stronger. So definitely, as we go into the next few quarters, you will hear more about it. Just, I think, more demand.
Rod
Okay, thanks, Atul. And then I wanted to follow up on Wi-Fi. The numbers you guys printed were a little bit below what we expected. I was curious if they were below what you expected. And then sort of as part of this question, you guys had talked about 40% to 60% growth this year in Wi-Fi. Are you still thinking that as the hospitality industry comes back online? And so I'm just curious kind of what the – you know, what you're thinking on Wi-Fi and whether this was below what you had expected for the quarter.
Abigail
Yeah. So let me give a quick rundown and then if Stephen wants to add. We absolutely think 40% to 60% is right on. Fantastic demand on enterprise products. Good acceleration. We were supply constrained in Q1. So we feel very good where we are. with the product lines, the Wi-Fi 6 adoption, some of the new markets which we are getting traction in, hospitality definitely strengthening, coming back. So we are actually pretty hopeful and confident about that market.
Peter
Yeah, so I think just to add to that, I think it was actually pretty much, Wi-Fi was pretty much in line with our expectations from what we guided last quarter. I think as Atul mentioned earlier, Really, it becomes more of a supply issue than a demand situation. We are seeing hospitality, and we mentioned this last quarter, we're seeing the hospitality market come back online, in particular in Europe. And we're also seeing opportunities in Wi-Fi for new markets like logistics and medical. They're providing sort of rich feeding grounds for us. And as we start to see some of these government subsidies going into other regions of the world, We're finding, particularly in Europe, Wi-Fi for You program really driving new demand for our Wi-Fi products. So we feel good about the numbers. We actually hit a record for Q1. We expect sequential increase for Q2 and feel good about the 40% growth trajectory.
Rod
Okay, you're not worried about supplies being a risk to the Wi-Fi growth later in the year? You think that'll be fine?
Peter
No, we factored that into our calculations and guidance, so we think 40 to 60 holds.
Rod
Okay.
Abigail
All right. Thank you, guys. Maybe one more data point is outdoor Wi-Fi is accelerating because one of the effects of COVID is government countries, they want connectivity everywhere. And many situations, public Wi-Fi, outdoor situations are accelerating, and that's where we have a very superior differentiation. So, no, we feel pretty good where we are. Okay, great. Thank you. Thank you.
Operator
And our next question comes from the line of George Notary with Jefferies. Your line is now open.
George Notary
Hi, guys. Thanks very much, and congratulations on the nice results here. I guess I wanted to sort of go back to the question of supply constraints. Can you give us a sense for how much revenue you weren't able to ship in Q1 because of supply constraints, and then Also, obviously, component pricing is going up. Any thoughts on how that might have had an impact on your margins?
Peter
Yeah, so this is Stephen again. I would say it's really tough to quantify that. I think we still came past the upper end of our guidance. I think the supply constraints for us are going to be more of a Q2 approach. impact with a possibly dribbling into Q3. And so you saw from our guide, sequentially we've guided 1% down. And we said last quarter we felt Q2 would be more likely to be the tighter quarter for us. As a company, we've done a lot of things to get ahead of this. We actually started looking at the supply chain way back last year and building buffer stocks. So I think we're in a better situation than most. But I think really Q2 is going to be the tougher quarter to us, and that's built into our guide.
Abigail
Yeah, maybe one more point to add. We have excellent relationships with our strategic suppliers. And the reason for that is that the kind of solutions Cambium works on is state-of-the-art, cutting-edge, 60 gigahertz, 28 gigahertz, the Wi-Fi 6 indoor-outdoor. They value our inputs as a system architect. So our company works very closely with them. So, as Stephen mentioned, we proactively worked with them as early as last year, November, because we knew the paucity of chips was coming. So, I think we are, compared to competition and other companies, I think we are well positioned, and everything we are guiding, we are taking those things into account.
Peter
Yeah, and this is Stephen again. With regards to your other question on gross margins, certainly, again, with our guides, we guided gross margins 49 to 50. So, we are seeing the the impact as a result of the higher component costs reflected in our guidance, and obviously a little bit higher cost from the overall freight and surcharges associated with the supply constraints as well. You know, you've seen as a company, we've done a lot around the gross margins, and over the last year you've seen them improve quite materially. I would expect once we work through these supply constraints that you should expect to see our gross margins come back into the 50s. And obviously, we still have expectations of driving towards our longer-term gross margin model of that 51% to 52%. Got it.
George Notary
If I could just ask one more follow-up. This is a bit of a change in subject here, but I wanted to ask about CN Maestro X. You guys, I think, introduced that in the quarterly There's a big trial going on with your customers. I'm just curious what the initial feedback looks like and what kind of acceptance you're getting on that. Thanks a lot.
Abigail
And I think, as we mentioned in the commentary as well, very good reception. We have over half a million users using Maestro as a platform. And now with the evaluated services, data storage, duration of data storage, some of the security features, deployment features, I think it's still early. But so far, so good. Very positive feedback. It's helping customers deploy networks in a far more easier manner. And then for many of these government broadband initiatives, you know, you're seeing we are winning quite a few deals. One of the reasons is they find the ease of management, ease of deployment through CN Maestro as a key differentiator. And CN Maestro acts as just additional features for which we are now monetizing. And every quarter we'll give you guys a good rundown how that entire monetization part is going. Thanks. Thank you.
Operator
And our next question is from Scott Searle with Ross Capital. Your line is now open.
Scott Searle
Hey, good afternoon. Thanks for taking my questions. Atul, you referenced RDOF in your opening comments. There are a lot of different government and regulatory initiatives out there for various subsidy programs to bridge the digital divide. I was wondering if you could address what revenues were attributable to that in the first quarter and how big the pipeline of opportunity is there, right? If you look at RDOF and you start adding up some of the potential numbers from the broadband infrastructure bill, if and when that ever passes, some big numbers there. So I'm wondering if you could frame that for us a little bit in terms of where we are today and maybe what that could mean over the next 18 months.
Abigail
I think as we said probably last quarter, RDOF for Cambium in a meaningful manner I think we'll still probably end of 21, early 22, is when you'll see a lot of momentum behind that. I think what you're seeing in RDOF right now is early projects, and Cambium is winning quite a few of them, but there's still early infrastructure, backhaul, those type of things. The real RDOF formula for Cambium starts on access parts, point-to-multipoint, Wi-Fi, those type of products get going. And as we said earlier, I think you will see a significant spend of RDOC will be probably first six years. And that means, you know, if you were to kind of time it, I would say in the late this year, early 22 is when things will start in a significant manner. And until then, you'll hear projects here and there. But the real momentum, the wheel will, I think, start moving, my guess is late this year or early next year. And we are very well positioned with the early order of winners, approximately half of them are already using some Cambium product or the other. So that's probably just a little bit of color on that.
Scott Searle
Great. Very helpful. And as a follow-up, 60 gigahertz seems like it's gaining some momentum for you. I think you specifically referenced starting to move into urban markets, which in my mind says larger bids, larger opportunities. I'm wondering if you could give us an update in terms of how big you think that is this year. And now with The 28-gig product coming behind it, different technology, different solution, but I'm wondering if you could size the 28-gig opportunity versus the 60-gig opportunity. Comparable, smaller, bigger? Thank you. Okay.
Abigail
So this year, for 60 gigahertz, at least for, I would say, Q2 and Q3, lots of POCs. I think we are probably over north of 40 POCs already, and I think I would still say Q2 and Q3, but fantastic reception so far. in terms of quality, performance, MU MIMO architecture Cambium has on 60 gigahertz, customers are pretty pleased. So my sense is, Scott, that acceleration of 60 for Cambium in terms of size of the deals and all that generally happens, you know, T plus six, six months after you do the POC. So you can say, you know, towards the end of the year, early next year, for 60 gigahertz would be a good acceleration time. 28 gigahertz, we will start to POC. We have actually done with one customer very early quick testing and very good results. But real POCs will start probably in a July-ish timeframe. And then we will volume ship in probably late Q3. And then I would say Q4 and Q1 probably would be, again, POCs. And then maybe timing-wise, I would say mid-22 is when you'll start to see 28 accelerate. Now, let me differentiate the two a little bit for you. Both are phenomenal multi-gigabit products. Both have taken us two years plus to design and build. There's a lot of R&D and a lot of differentiation built into these products. One, 60 gigahertz will give you, say, kilometer to two, depending on the terrain and weather and all that. And then 28 gigahertz will start to give you probably four to seven kilometers, depending again on terrain and weather. So now you can see on the edge, we truly have multi-gigabits. 28 gigabit is a fixed 5G path. So globally, it will be pretty well received as a standard, and our anticipation is that EMEA will lead. And we already have a sizable set of deals because there is a significant pent-up demand for that product. 60 gigahertz will also be a global product, and probably less in the infrastructure, whereas 28 gigahertz can really, since it covers the distance, it'll go more... infrastructural product. But they are hand in a glove. Both go hand in hand when you're deploying multi-gigabit network. And with the last 3, 400 meters, you've got Wi-Fi 6. So we feel our wireless fabric has truly is coming very close to scaling. And all those products will be significant winners in different regions. 60 gigahertz, you'll see North America lead the world in a major manner. So I think you'll see a little bit of differentiation across territories. Great. Thank you. Thanks, Scott.
Operator
And our next question is from Simon Leopold with Raymond James. Your line is now open.
Simon Leopold
Thanks. Appreciate that. First, just a quick one. You were asked earlier about the supply chain constraint effect on March. I guess I'm more interested in understanding what you've assumed for the revenue headwind in your June guidance in the gross margin headwind. It sounds like you could sell more if you could get all the components you needed. Just trying to understand how to quantify that headwind.
Peter
Yeah, I think the way we've tried to, you know, there's always an assumption that you get the perfect mix, Simon, and that's obviously not the case. But I think between the lower and upper end, We've tried to build in the lower end, the lack of availability on our components, and at the higher end, assuming a better case scenario in component availability. I mean, certainly there are situations where lead times get pushed out and deliveries get missed. And so I guess we've probably been a little bit more aggressive at sort of de-risking those upper and lower ends. But, again, it's tough to give you a number on how much more we could do if supply was not an issue. But we've tried to factor that into our upper and lower end on our guidance.
Simon Leopold
So just to make sure I understand you, if somebody makes the assumption that you do the high end of sales, we should assume the high end of gross margin and vice versa. The low end of sales would mean the low end of gross margin.
Peter
Oh, absolutely, yeah. If that's what you're referring to, absolutely, yeah.
Simon Leopold
Great, great. No, I appreciate that. Now, the longer-term question I wanted to see if you could talk about is really the changing dynamics of competition. Specifically, I'm thinking about operators like T-Mobile and Charter talking more about efforts to sell services into rural markets, which historically was the turf of your primary customer base, the WISP. I certainly heard your commentary about moving into urban, so it's not as if you're not making a counterattack. But I want to get your sense of how you see the competitive landscape if operators like T-Mobile and Charter push technology that isn't necessarily yours into the footprint where you've historically sold. Thank you.
Abigail
Yes, I have an excellent question, by the way. And I will give a good color on this. I think Cambium is finding that we are moving up the value chain. That's a key statement I'm making, probably for the first time. I think the kind of capability we have added into our portfolio over the last, say, 12 months is opening lots of doors for Cambium globally in not just Tier 2, but Tier 1 as well. And I think what's happening is people are noticing the innovation of 60 gigahertz, the quality. They're noticing the 28 gigahertz product coming. So I think different regions we have good traction with the kind of names you're throwing. So I will not give you specific names, but you are not that far off from anticipating next year, two years, where Cambium could go. It's all because of that innovation. Well, I think we're doing. And yet maintaining the quality through a lot of software-defined radios and software features. So I think as we evolve the company, you will start to hear over the next, say, five, six quarters, some names, which will not be too far from some of your guesses.
Simon Leopold
Thank you. I appreciate that insight.
Operator
And our next question is from Eric Supaiger with JMP Securities. Your line is now open.
Eric Supaiger
Yeah, thanks. One, I was just curious, what are the – lead times on some of the longer lead time components that you're looking at. And then my question more than that is, how much are you competing with fiber today? Is that becoming the primary competitor, or how much do you see fiber as the alternative to fixed wireless broadband today?
Abigail
Okay. So, Eric, thanks for the question. Lead times Many of the products, especially on the Wi-Fi frontier, the lead time for the chips could be as much as 52 weeks. And my sense is that you will see the lead times probably start shrinking as we go into Q4, because I think every chip company is also working proactively to bring it down. But as of now, many of the chips could have as much as north of 50 weeks lead time.
Peter
But, Eric, just to add to that, you know, as we said earlier, we got way ahead of this. So we were building buffer stocks and putting in orders back in even as early as Q3 last year. So we're obviously not perfect. There's always some risks and surges around this, but we're probably well positioned or better positioned than most. But certainly we're dealing with some long lead times.
Abigail
Yeah, yeah. Last November timeframe, we saw this coming. So we had beefed up our forecast, working very closely, proactively with our partners. So I think, as I said, you will see us in a much better position because we did not wait until February or March. We had given much higher forecasts for our – and we were growing as a company, so it was a little easier to look ahead as well. But I would say, yeah, lead times are high. but I do anticipate them coming down probably late Q3, early Q4. Now your second question, Fiverr. We are actually finding significant wins. Alaska community, we just talked of one of them. So as I've said always, that you will see mix and match of appropriate solutions in RDOF, in any other government initiative. We are very focused on economics. I think ultimately the solutions which win are They win because of economics, performance, going hand-in-hand. And fiber guys actually are finding Cambium to be a great partner. There are high-density areas where they already have fiber, but it makes sense for them to extend fiber. But there are many areas where they need to extend, which are tough terrain, they come to Cambium, or they are dispersed, low-density neighborhoods, they come to Cambium. So I think we are finding this to be not really a competitive but a symbiotic relationship. And this is why when you look at even the art of winners, some of the art of winners we're working with, they do fiber as well. So Cambium is very well positioned to be actually a significant enabler of broadband to both wireless and wireline. Current wins and current deals are showing us that.
Eric Supaiger
Very good. Thank you very much.
Abigail
Thanks, Eric.
Operator
And again, to ask a question, you will need to press star 1 on your telephone. Our next question is from John Lopez with Vertical Group. Your line is now open.
John Lopez
Hi. Thanks very much. I had two. The first one, if I look at the annual guidance and we take your commentary around Wi-Fi those aspirations being intact, it kind of implies that point-to-multi-point and point-to-point, I don't know, maybe flatten out or even kind of trend down a little bit in the second half relative to the first. Am I thinking about that right, or are there other factors I'm not taking into account?
Peter
Well, I mean, John, this is Stephen. I think, you know, when you're looking at year-over-year comparisons, right, we – you saw that in Q1, point-to-multi-point had year-over-year growth of something like 60-odd percent, and it's still pretty strong for Q2. So when you look at the second half in relation to those year-over-year comps, from a percentage perspective, it is going to be lower. I think overall, we're expecting point-to-multi-point to be north of sort of 35% growth. Point-to-point is more of a mature market. So obviously, you know, and a little bit lumpier given the exposure that we have to some of the defense contracts. So that's going to be flattish. I think that's the right assumption there. And obviously, we've already given your Wi-Fi numbers between 40% and 60%. So I hope that puts some color around it.
John Lopez
No, that helps a lot.
Peter
Yeah, that helps a lot. Thank you.
John Lopez
My second question, I wanted to come back to the topic of competition and And I think you guys mentioned at the outset in points and multipoints some comfort that you're picking share up against, like you said, larger and smaller competitors. You have one large competitor that, you know, they've had a couple of sort of relatively high-profile missteps, one of them not that long ago with the security issue. I guess I'm wondering, do you see sort of tangible evidence that you're, in fact, picking share up? relative to that competitor, or is this more like anecdotal, looking at sort of your business relative to the peer set?
Abigail
No, I think, John, this is more anecdotal. I think we are picking share more on a broad basis, not just in large competition, but I think we have a lot of regional competition as well in Europe or Canada or Asia. I think at this point, I would say more broadly because of the type of new products we have, They are highly differentiated. They all are managed from a single pin of glass. So I think to me at this point, it's not just one company. I think this is more a broad frontier. We are picking up shares. We are picking up new customers. We are getting new territories, new applications. That's what's driving it.
John Lopez
Okay. I'm sorry, just to clarify that. I guess what I was asking is you're looking at your business and sort of saying your growth looks kind of better than the peer set, more so than you saying we've identified, say, competitive displacements here or there. Is that the right way to think about your commentary?
Abigail
No, I think you're right. I'm saying we are more broad-based, anecdotal. The tide is rising for us. Gotcha.
John Lopez
I got you. Okay. Thanks very much for the thoughts. I appreciate it.
Abigail
Thanks, John. Thanks, John.
Operator
And there are no further questions. I will now turn the call back over to Mr. Piers Schumann, Senior Director, Investor, and Industry Analyst Relations, for closing remarks.
Abigail
Thank you, Abigail. During Q2 2021, Cambium Networks will be presenting and meeting virtually with investors on May 18th at the Needham Virtual Technology and Media Conference, May 26th at the JPMorgan Global Technology, Media, and Communications Conference, May 27th at the Barrington Research Virtual Spring Investment Conference, and May 28th with Raymond James' virtual bus tour. In the meantime, you're always welcome to contact our Investor Relations Department at 847-264-2188 with any questions that arise. Thank you for joining us, and this concludes today's call.
Operator
Ladies and gentlemen, that concludes today's quarterly earnings call. Thank you for your participation. You may now log off.
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