[Table_Page] 行业专题研究|国防军工 2026 年 2 月 28 日 证券研究报告 [Table_Title] 国防军工行业 | | AIDC | 电源的"最后一公里"，板载电源的高密高集成化革命 | | | | --- | --- | --- | --- | --- | | 分析师： [Tabl | 孟祥杰 | 分析师： 陈昕 | 分析师： | 吴坤其 | | e_Author] | SAC 执证号：S0260521040002 | SAC 执证号：S0260522080008 | | SAC 执证号：S0260522120001 | | | SFC CE.no: BRF275 | SFC CE.no: BWV823 | | SFC CE.no: BRT139 | | | 010-59136693 | 010-59136699 | | 010-59133689 | | | mengxiangjie@gf.com.cn | gfchenxin@gf.com.cn | | wukunqi@gf.com.cn | [Table_Summary] 核心观点： 识别风险，发现价值 请务必阅读末页的免责声明 ...

Summary of Conference Call on Liquid Cooling Technology Industry Overview - 2025 is projected to be the global year of liquid cooling, with an expected shipment of 30,000 units, significantly higher than the 1,000-2,000 units in 2024 [1][3] - Demand is anticipated to increase by over 30% in the second half of 2025 compared to the first half, driven by IT infrastructure expansion and capacity ramp-up [2][4] Key Insights and Arguments - NVIDIA plans to deliver 5 million GPUs in 2026, corresponding to approximately 60,000 to 70,000 liquid cooling cabinets, indicating a potential doubling of demand [4][5] - The liquid cooling market is fragmented, with leading suppliers like Weidi holding a 30%-35% market share, and North American suppliers collectively accounting for nearly 60% of the market [1][7][8] - Chinese manufacturers face challenges in the international market due to trade issues and technological gaps, primarily participating in Southeast Asian markets while focusing on domestic liquid cooling applications [1][9] Pricing and Cost Structure - The cost of overseas liquid cooling systems is approximately $70,000 for an N172 cabinet and $50,000 for an N272 cabinet, while domestic systems are cheaper, averaging around 2,000 RMB per kW [10][11] - Domestic cooling systems are generally less expensive due to lower component costs and simpler designs, with total costs around 2,000 RMB per kW [12] Profitability and Market Entry - Overseas manufacturers typically require a gross margin of at least 35%, while some domestic companies are willing to operate with margins as low as 20% [13][14] - There are currently no clear indications that domestic companies can directly enter the overseas market, although some have received certifications from major clients like NVIDIA [15] Technological Developments - The liquid cooling technology is evolving, with potential shifts towards hybrid cooling solutions that combine GPU direct cooling with cabinet-level silent cooling [3][16] - The Rubin architecture may introduce new challenges for liquid cooling systems, necessitating further validation of new technologies [17][18] Future Trends - The development of server power supplies is moving towards higher capacities, with a new generation of 12 kW power supplies expected in early 2026 [19][20] - The transition to high-voltage direct current (DC) power supplies is anticipated, which could enhance energy density and efficiency [20] Challenges in Implementation - The low-voltage 848V systems face limitations due to high current requirements, necessitating the development of high-voltage to low-voltage onboard power supplies [23] - High-frequency conversion technologies present significant challenges in terms of design complexity and cost [24][25] Conclusion - The liquid cooling market is poised for significant growth, driven by technological advancements and increasing demand from the IT sector. However, challenges remain in terms of international market entry for Chinese manufacturers and the need for ongoing innovation in cooling technologies.