Investment Rating - The report suggests a positive investment outlook for the power supply, liquid cooling, and supporting electrical equipment sectors within the data center industry [3]. Core Insights - The report highlights the increasing value and redundancy in power supply configurations for data centers, particularly with the rise of AI computing demands [3]. - It emphasizes the transition from traditional data centers to AI Data Centers (AIDC), which require higher power densities and specialized cooling solutions [8]. - The liquid cooling market is expected to grow significantly, with cold plate cooling becoming mainstream and immersion cooling waiting for further development [33]. Summary by Sections 1. Power Supply: Growth Direction from Inside to Outside the Cabinet - The report notes that the value of power supply systems is increasing due to the unique power consumption characteristics of data centers, with a projected market size of approximately 150 billion yuan for HVDC systems by 2027 [3]. - The average rack density for AI servers is expected to increase significantly, leading to higher demand for server power supplies, with a projected market size of 373 billion yuan by 2027 [3][31]. 2. Liquid Cooling: Gradual Adoption of Cold Plate and Immersion Cooling - Cold plate liquid cooling is projected to account for 40% of the market by 2027, with a market size of 221 billion yuan, while immersion cooling is expected to reach 89.8 billion yuan [45]. - The report discusses the advantages of cold plate cooling, including lower costs and better compatibility with existing systems, while immersion cooling faces challenges related to liquid properties and system compatibility [36][37]. 3. Supporting Electrical Equipment: Transformers, Busbars, and Power Quality Devices - The demand for busbars is expected to rise as they can support high current loads required by AI-powered cabinets, with significant growth potential in the market [3]. - The report highlights the increasing acceptance of SiC-based power quality products in the data center sector, indicating a shift towards more efficient and compact solutions [3]. 4. Market Forecasts - The report provides detailed forecasts for the growth of the data center market, including the number of standard racks and total power capacity, projecting a total power capacity of 68.7 GW by 2027 [31][45]. - It also outlines the expected market sizes for various power supply solutions, including UPS and HVDC systems, with significant growth anticipated in the coming years [31].