Financial Data and Key Metrics Changes - In Q4, the company reported revenue of $170 million, a 26% sequential increase and up 180% year over year [5][23] - For fiscal year 2025, total revenue reached $437 million, representing a growth of 126% year over year [6][22] - Non-GAAP gross margin for Q4 was 67.4%, and for fiscal year 2025, it was 65%, reflecting an increase of 257 basis points year over year [6][22] - Non-GAAP operating income in Q4 was $62.5 million, compared to $42.4 million in Q3, indicating significant leverage from revenue growth [25] Business Line Data and Key Metrics Changes - The Active Electrical Cable (AEC) product line maintained a steep growth trajectory, with significant contributions from three hyperscalers, each contributing over 10% of revenue [10][24] - The optical business achieved strong momentum, with revenue growth targets met, including a significant win for an 800 gig transceiver expected to deploy in fiscal 2026 [13][14] - The retimer business also showed robust results, driven by 50 gig and 100 gig per lane Ethernet solutions, reflecting growing adoption in AI-driven architectures [17][18] Market Data and Key Metrics Changes - The company anticipates increasing customer diversification across copper and optical connectivity for various applications in AI networks [10][21] - The demand for high-speed connectivity solutions is expected to continue growing among hyperscaler customers, driven by advanced AI services [21] Company Strategy and Development Direction - The company is focused on customer-driven innovation and has successfully capitalized on a predicted inflection point in demand for high-performance connectivity solutions [7][8] - The strategy includes a holistic innovation approach that integrates advanced technology, integrated circuit design, and system-level solutions [9][10] - The company aims to capture significant opportunities in the global AI infrastructure investment wave, positioning itself for sustained growth [20] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in sustained revenue growth driven by strong customer forecasts and new design wins [12][19] - The company expects revenue for Q1 of fiscal 2026 to be between $185 million and $195 million, with year-over-year growth exceeding 85% anticipated for the full year [27][28] - Management highlighted the importance of flexibility in navigating tariff risks and the evolving macroeconomic environment [56] Other Important Information - The company ended Q4 with cash and equivalents of $431.3 million, an increase of $52.1 million from Q3, indicating strong financial health [26] - CapEx for Q4 was $3.7 million, primarily for production equipment purchases, with expectations for CapEx to double in fiscal 2026 to support growth [26][82] Q&A Session Summary Question: Can you quantify the revenue contribution from the largest customers? - The largest customer accounted for 61% of revenue, with two others contributing 12% and 11% respectively, and diversification is expected to continue in fiscal 2026 [34][35] Question: What are the expectations for gross margin in fiscal 2026? - Gross margin is expected to be at or above the high end of the long-term model, with guidance for Q1 set at 65% [36][38] Question: Can you discuss the use cases for large customers, especially regarding AEC? - The main use cases include connecting servers with switches, with a significant focus on scale-out networks [44][45] Question: What is the competitive landscape for AEC products? - The competitive environment has not changed significantly, and the company aims to maintain its leadership by delivering innovative solutions quickly [88][90] Question: What are the expectations for scale-up revenues? - Design wins are expected to materialize in calendar 2026, with significant growth anticipated in the following years [79] Question: Are there any supply chain bottlenecks? - The company has shown the ability to ramp production quickly, with lead times primarily affected by silicon supply [102]