Core Viewpoint - Domestic and international cloud service providers (CSPs) are experiencing high capital expenditures, with potential for upward adjustments in domestic investments, particularly in AI infrastructure and related power equipment demand [1][2]. Group 1: Capital Expenditure Insights - Alibaba's cloud business reported a 34% year-on-year revenue growth in Q2 of FY2026, with plans to increase the originally planned capital expenditure of 380 billion yuan over the next three years [2]. - Microsoft reported total revenue of $81.3 billion in Q2 of FY2026, a 17% increase year-on-year, with Azure and other cloud services revenue growing by 39%. Capital expenditures reached $37.5 billion, up 66% year-on-year [2]. - Meta's revenue for the same quarter was $59.9 billion, a 24% year-on-year increase, with projected capital expenditures for 2026 expected to rise to between $115 billion and $135 billion, focusing on AI infrastructure [2]. Group 2: Technological Advancements in Power Systems - The data center power system is transitioning from traditional UPS to HVDC, Panama power, and SST technologies, with NVIDIA identifying 800V DC supply combined with SST as the ultimate power solution for AI data centers (AIDC) [3]. - SST technology offers energy efficiency and space-saving benefits, promoting a shift from silicon to copper, indicating significant long-term cost reduction potential [3]. Group 3: Investment Opportunities in Power Supply Units - AIDC cabinet power supply units (PSUs) are critical for high-density AI computing clusters, integrating power distribution, voltage conversion, monitoring, and cooling functions, and moving towards 48V DC or HVDC systems [4]. - The PSU market is expected to benefit from the increasing global shipment of AI servers, while SST technology, despite its current low penetration, has substantial growth potential as advanced architectures like liquid cooling and high-voltage DC become more prevalent [5]. - Upcoming product launches at the GTC conference, including Rubin GPU and Vera CPU, are expected to catalyze industry growth, reinforcing the investment outlook for SST and PSU technologies [5].