Core Insights - The article discusses the evolution of power supply architectures in data centers, highlighting the shift towards more efficient technologies such as 800V HVDC and SST, with expectations for significant adoption by 2028 and 2030 respectively [2][4][11]. Group 1: Power Supply Architecture Evolution - The current power supply in data centers is primarily centralized (Powershelf), but with the rise of AI workloads, a transition to Sidecar power supply mode is anticipated around 2026-2027, with single cabinet power reaching 250-1500 kW [2][4]. - By 2030, the market is expected to gradually adopt SST power supply architecture, which is projected to achieve a full-link efficiency of 91.2%, surpassing the current UPS architecture efficiency of 85.8% [6][11]. Group 2: 800V HVDC Technology - 800V HVDC is gaining attention for its efficiency and space-saving benefits, potentially increasing end-to-end efficiency to 95-98% compared to traditional UPS systems, while reducing copper usage by 45% and floor space by 40% [11][12]. - Despite its advantages, 800V HVDC faces challenges such as higher initial costs (20-30% more than traditional UPS) and unclear market standards, necessitating industry-wide collaboration for its advancement [11][12]. Group 3: New UPS Technologies - A new type of simplified UPS has been introduced, eliminating the traditional AC/DC rectification stage, which allows for 0ms switching and improved IT performance [15][16]. - This new UPS operates in three modes: normal operation, energy storage during power outages, and combined power supply when load exceeds UPS limits [15][16]. Group 4: Power Supply Technology Upgrades - Upgrades in power supply technology focus on new materials, topologies, and functionalities, with significant advancements in power devices such as SiC MOSFETs replacing Si IGBTs [18][22]. - The integration of passive components like capacitors and inductors is seen as a bottleneck for future integrated power solutions, with expectations for higher integration levels in the coming years [22][24]. Group 5: Addressing GPU Load Fluctuations - The article highlights the challenges posed by GPU load fluctuations in data centers, which can cause significant power quality issues [24][26]. - Solutions for mitigating these fluctuations include using supercapacitors on the DC side and enhancing power supply unit (PSU) designs to accommodate larger capacitors for better load smoothing [26][30]. Group 6: FIVR Technology - FIVR (Fully Integrated Voltage Regulator) is emerging as a promising technology for DC-DC terminal power supply, offering significant improvements in size, thickness, and dynamic response compared to traditional power supplies [33][34]. - This technology integrates power supply directly into the chip, reducing component count and achieving faster response times, although it imposes stringent requirements on inductor size and performance [33][34].

Summary of Key Points from Conference Call Records Industry Overview - The conference call discusses the advancements in the **800V HVDC** technology and its implications for the **AIDC (Artificial Intelligence Data Center)** supply architecture, highlighting a significant opportunity for domestic suppliers in China to meet overseas demand [1][2][5]. Core Insights and Arguments - **Adoption of 800V HVDC**: Nvidia plans to gradually adopt 800V HVDC to address the increasing power density in AI computing, which will lead to energy savings and reduced copper usage [1][2][4]. - **Investment Trends**: Major tech companies like Meta and Alphabet are increasing capital expenditures, indicating a strong focus on AIDC investments. Meta's capital expenditure was raised from $64 billion to $66 billion, while Alphabet's was increased to $85 billion [5]. - **Advantages of HVDC**: HVDC systems eliminate the need for AC-DC and DC-DC conversions, resulting in energy savings and reduced losses compared to traditional UPS systems [3][4]. - **Solid-State Transformers (SST)**: SSTs are being developed as future power solutions, currently in pilot testing, with potential applications in data centers and renewable energy generation. Full-scale deployment is expected to take three years [1][7][8]. - **Solid-State Battery Development**: Focus on key components such as dry electrodes and insulation materials, with significant orders already placed for equipment [9][10]. - **Photovoltaic Industry**: The solar industry is in a transitional phase, with clear price recovery trends and a recommendation to focus on silicon materials and auxiliary materials [11]. Additional Important Content - **Investment Opportunities**: Companies like McMitter, Zhongheng Electric, and Shenghong Co. are highlighted as key players in the HVDC space. In the UPS sector, companies like Kstar and Kehua Data are also noted for their technological capabilities [6]. - **Future of SST**: SSTs are expected to play a crucial role in the evolution of power supply systems, particularly in high-power AIDC applications [8]. - **Wind Power Market**: The wind power sector is showing signs of recovery, with a focus on key components and offshore wind developments, indicating strong growth potential [14][15]. - **Investment Strategy**: Current investment strategies should prioritize IDC power systems, solid-state batteries, and the photovoltaic sector, as these areas present significant growth potential [18].

Core Viewpoint - The article discusses the evolution of AIDC power architecture towards 800V HVDC and solid-state transformers (SST), highlighting a potential market explosion starting in 2026 as companies validate technologies and secure key customers [1] Group 1 - AIDC power architecture is gradually transitioning to 800V HVDC and SST, with a market explosion expected around 2026 [1] - SST heavily relies on key wide bandgap semiconductor devices (SiC, GaN) and specialized magnetic materials, with current production capacity concentrated among a few manufacturers [1] - High-frequency transformers are central to SST systems, and companies with traditional expertise in key subcomponents are likely to become indispensable partners for major players like Weidi and Delta [1]

Key Takeaways from the Taipei Computex Industry Overview - The report focuses on the Asia Tech Hardware industry, particularly highlighting developments from the Taipei Computex event held from May 20 to May 23, 2023. Key companies involved include Foxconn (2317 TT), Auras (3324 TT), Lite-on (2301 TT), Lotes (3533 TT), Winway (6515 TT), AVC (3017 TT), and Zhending (4958 TT) [1][1]. Core Insights - **GB300/B300 Display**: The GB300/B300 display was a focal point at the Computex, featuring computing trays with Cordelia interfaces and 20 sets of quick disconnect (NVQD). The GB300 is expected to adopt the Bianca design moving forward [2][2]. - **Component Shipments**: Component shipments for GB300 servers are anticipated to commence in Q3 2025, with limited rack shipments expected in Q4 2025. For the GB200, supply chain bottlenecks have been resolved, potentially increasing rack shipments to 7-8K in Q2 and reaching 10K in Q3 2025 [2][2]. - **Nvidia Collaboration**: Suppliers involved in the Cordelia design, such as Lotes, will continue to work with Nvidia to address issues in the new compute tray design planned for 2026 [2][2]. - **Market Confusion**: Investors expressed confusion regarding similar products from various suppliers at Computex. Inclusion in Nvidia's verified list (NVL) is crucial for securing orders, as CSPs ultimately determine key component suppliers [2][2]. - **Liquid Cooling Solutions**: Delta has gained significant traction among hyperscalers, with liquid cooling revenue expected to exceed NT$20 billion this year. Early entrants like AVC and Delta maintain healthy profitability despite competition [2][2]. Future Trends - **Datacenter Cooling Solutions**: Liquid-to-liquid (L2L) cooling and 800V HVDC are emerging as future solutions for datacenter cooling and power. New datacenters are increasingly adopting L2L solutions, while Nvidia collaborates with suppliers for 800V HVDC to support 1MW server racks by 2027 [2][2]. Investment Ratings - **Quanta Computer Inc (2382.TT)**: Rated Underperform with a target price of NT$240 [5][5]. - **Chroma ATE Inc (2360.TT)**: Rated Outperform with a target price of NT$480 [6][6]. - **Delta Electronics Inc (2308.TT)**: Rated Outperform with a target price of NT$490 [7][7]. - **Unimicron Technology Corp (3037.TT)**: Rated Outperform with a target price of NT$165 [7][7]. - **Luxshare Precision Industry Co Ltd (002475.CH)**: Rated Outperform with a target price of RMB47 [7][7]. Risks and Considerations - **Quanta Computer Inc**: Risks include higher-than-expected demand for AI servers and lower-than-expected demand for AI chips [49][49]. - **Chroma ATE Inc**: Risks include competition in the AI chip market and slower EV penetration [49][49]. - **Delta Electronics Inc**: Risks include competition in AI server power components and potential delays in the recovery of the automation market [55][55]. - **Unimicron Technology Corp**: Risks include weaker-than-expected demand for key products and margin pressures [55][55]. - **Luxshare Precision Industry Co Ltd**: Risks include competition and slower-than-expected market recovery [55][55]. Additional Insights - The report emphasizes the importance of securing orders through Nvidia's verified supplier list and highlights the competitive landscape among suppliers in the Asia Tech Hardware industry [2][2].

Investment Rating - The report does not explicitly provide an investment rating for the industry or specific companies [4][5][6]. Core Insights - The upcoming GTC 2025 is expected to reveal significant advancements in the GB300 architecture, including a 1.5x performance increase in single-card FP4 performance, memory capacity enhancement to 288GB, and upgraded networking capabilities [4]. - The GB300 cooling system is anticipated to shift from a large-area cold plate to individual liquid cooling plates for each chip, improving efficiency in heat dissipation [5]. - The Quantum 3400 X800 CPO version is set to begin mass production in Q3 2025, marking a significant milestone for NVIDIA's CPO product line [6]. - The introduction of 800V HVDC power systems is expected, with a new design integrating BBU and supercapacitors, significantly reducing size and weight while improving charging speed [7]. Summary by Sections Section: GB300 Architecture - The GB300 is projected to enhance performance with a 1.5x increase in FP4 performance and a memory upgrade to 288GB, utilizing 12-layer stacked HBM3E memory [4]. - Power consumption is expected to rise to 1.4kW for GB300, compared to previous models [4]. Section: Cooling Solutions - The cooling structure for GB300 may transition to individual liquid cooling plates for each chip, increasing the number of quick-connect fittings from 126 to 270 per cabinet [5]. Section: CPO Development - The Quantum 3400 X800 CPO will be NVIDIA's first mass-produced CPO product, featuring advanced multi-plane technology and a total switching capacity of 115.2T [6]. Section: Power Supply Innovations - The new power supply design for GB300 is expected to integrate supercapacitors and BBU, reducing the size by 50-70% and weight by 50-60%, while enhancing charging speed by five times [7].

Investment Rating - The investment rating for the computer industry is "Positive" (maintained) [1] Core Viewpoints - The report indicates that despite a recent market pullback with a decline of 1.4% in the computer sector, there is strong confidence in the ongoing development of domestic AI, suggesting that opportunities still exist [4] - The financial results from Century Internet validate the robust growth of the AI industry, with new orders of 252.5MW in Q4 2024 and a projected total capacity delivery of 400-450MW in 2025, representing a year-on-year growth of 161%-194% [4] - The report emphasizes the need to closely track developments in the AI industry, particularly in large model changes and application advancements, as numerous industry changes are expected domestically and internationally [4] - There is a focus on edge AI, which is anticipated to develop significantly with the emergence of multimodal large models, leading to new hardware terminals [4] - The report highlights the upcoming Nvidia GTC conference and the increasing importance of high-voltage direct current (HVDC) applications in AI data centers, suggesting a positive outlook for related power supply companies [4] - Investment strategies should focus on industry trends and select companies with high potential, while also considering the volatility of the sector [4] Summary by Sections Market Performance - The computer sector experienced a market pullback with a decline of 1.4%, ranking last among the Shenwan industry sectors [4] AI Industry Developments - The report notes a consensus in the market regarding the development of domestic AI, with significant capital expenditures expected from companies like Century Internet [4] - The report suggests that the market has shifted from "transaction expectations" to "transaction realities" regarding AI implementation [4] Investment Recommendations - The report recommends focusing on companies with clear application directions in edge AI and 2B applications, as well as those involved in domestic computing power [4]