SINOLINK SECURITIES·2025-03-09 14:13Investment Rating - The report suggests focusing on sectors such as servers, IDC, switches, switching chips, optical modules, and liquid cooling driven by domestic AI development, as well as servers and optical modules driven by overseas AI development [5]. Core Insights - DeepSeek has disclosed the theoretical cost and profit margin of its V3/R1 inference system, with a theoretical daily revenue of $562,027 and a profit margin of 545%. This advancement, along with the launch of the general-purpose AI Agent product Manus by Monica, is expected to accelerate the domestic AI application deployment and enhance profitability in the AI sector [1][10]. - The acceleration of AI technology iteration is leading to increased demand for computing power, prompting major internet companies like ByteDance and Baidu to potentially raise capital expenditures to expand their computing investments [1][12]. - The report highlights that in March 2025, Broadcom's Q1 revenue reached $14.916 billion, a 25% year-on-year increase, with net profit soaring by 315% to $5.503 billion, indicating strong performance in AI semiconductor revenue [1]. Summary by Sections Server Sector - Approximately 60% of the investment in large models is allocated to hardware procurement, with servers accounting for 69% of total capital expenditure. The year 2025 is projected to see a significant increase in inference demand, benefiting domestic ASIC chip manufacturers like ZTE and Unisoc [2][7]. Switch Sector - Network equipment procurement, including switches, constitutes about 11% of hardware procurement. Major suppliers like Ruijie Networks and Unisoc are positioned to benefit from the demand from leading internet companies [2][10]. IDC Sector - Data centers are crucial for AI development and deployment, with companies like Data Port and Runjian signing agreements to provide computing services. IDC suppliers are expected to benefit significantly from large-scale construction in 2025 [3][12]. Liquid Cooling Sector - The liquid cooling market is anticipated to expand significantly, with NVIDIA's NVL36/72 cabinets expected to be shipped in bulk by 2025. Domestic suppliers are accelerating their international expansion, indicating a promising growth trajectory [3][14]. Core Data Updates - In December, the three major telecom operators achieved a total telecom revenue of 141.7 billion yuan, a year-on-year increase of 10.10%. New business revenue reached 39.6 billion yuan, growing by 66.39% year-on-year [4][20]. Investment Recommendations - The report emphasizes the importance of monitoring sectors such as servers, IDC, switches, switching chips, optical modules, and liquid cooling, driven by both domestic and international AI developments [5].