Ren
Head of AI, Ex-Product Manager, AI Supply-Chain Bottlenecks
Nvidia's official 800 VDC architecture partners stand to benefit as AI racks move to high-voltage DC power. They span GaN and SiC chipmakers Navitas, STMicroelectronics, onsemi and Infineon; conversion and analog suppliers Alpha & Omega, Power Integrations, Texas Instruments, Analog Devices and Monolithic Power, whose VRM chips are already inside Nvidia GPUs; and rack, building and grid power players Flex, Vertiv, GE Vernova, ABB, Eaton, Schneider Electric and Siemens. x.com
Power semiconductor makers are in an industry-wide upcycle with pricing power as AI data centers move to 800V HVDC, confirmed by Infineon raising prices twice in three months while lifting full-year guidance. Infineon is the broad incumbent, guiding AI data-center power revenue to €2.5B by FY27, though EVs drag. Navitas, an Nvidia 800V partner for Rubin Ultra, has the most upside at 124x sales; onsemi brings profitable scale, and Alpha and Omega, Power Integrations and Vertiv ride the shift too. x.com
The companies on Nvidia's partner list for its next-generation 800V power architecture are effectively the power semis Nvidia is telling investors to buy: Navitas, MediaTek, STMicroelectronics, Flex, Power Integrations, Delta Electronics, Alpha & Omega, onsemi, Infineon, Vertiv, Texas Instruments, Monolithic Power, GE Vernova, Analog Devices, ABB, BizLink, Eaton, LITE-ON, Schneider Electric and Siemens. Navitas and MediaTek lead the group's gains at more than 200% each. x.com
AI data-center spending flows beyond GPUs and operators into networking, optics, power and cooling. Nvidia, AMD, Broadcom and Marvell supply chips; Arista, Nokia and Credo connectivity; Applied Optoelectronics and Lumentum optics; Vistra, Constellation and Bloom power; Vertiv and Modine cooling. Meta's $140B spending this year illustrates the scale, per a commenter with whom the point is agreed. x.com x.com
Navitas's place in NVIDIA's 800 VDC ecosystem carries little pricing power because the silicon tier is crowded. NVIDIA names fourteen silicon suppliers, Navitas among them, and rent comes from scarcity; SiC and GaN also split the socket by stage. Per SemiAnalysis, rollout is phased, and the first stage is a retrofit into existing wiring with the smallest content per site. Unlike optical, no 800 VDC tier has disclosed dollars yet; a first order with a figure and date would change the picture. … Show more
A rising value of compute per watt should benefit AI cloud, chip, connectivity and power suppliers. Elon Musk says that value will rise over time. Nebius has Microsoft and Meta deals; Marvell benefits from custom silicon demand; Credo connects GPUs; Vistra has long-term nuclear supply deals with Amazon and Meta; Nokia's Nvidia partnership could help it capture data-center networking growth. x.com x.com
Vertiv, STMicroelectronics and onsemi are vetted suppliers for Nvidia's 800-volt DC data center architecture, which all major hyperscalers will adopt from 2027 with Nvidia's Kyber racks. Legacy 54V racks need up to 200 kg of copper per megawatt; 800V cuts copper 45%, ownership cost up to 30% and maintenance 70%. Vertiv launches its 800V portfolio in H2 2026, STMicro co-develops 98%-efficient GaN converters with Nvidia, and onsemi works with Nvidia on solid-state transformers and power supplies. … Show more
Alpha and Omega Semiconductor is a promising business at the wrong price: its rerating on Nvidia AI-power hype rests on a narrative management has already walked down. The stock is up about 128% in a year to $44.45, near its 52-week high, as retail frames it as the cheapest catch-up in the 48V-to-12V power shift, citing alleged Nvidia GB300 DrMOS allocation. Yet the 800V supply chain is hard to win, with its bottleneck in silicon carbide and gallium nitride held by a few incumbents. x.com x.com … Show more
AI data centers need cooling, electricity and transmission, sustaining the case for Vertiv, GE Vernova and Quanta Services. Vertiv's sales rose 26% in the past year; its systems cool AI chips. GE Vernova is the go-to power trade for its gas turbines. Quanta builds the lines to data centers and has a record $53B backlog. x.com x.com x.com
Denser AI accelerators raise the value of efficient power delivery near processors, potentially making Navitas one of the most hidden AI winners in Nvidia's architecture. Its 24 kW board targets single-stage 800V-to-12V conversion at about 97% efficiency in Nvidia's 400 mm by 60 mm format. An 800V-to-6V design developed with Nvidia and Claros offer other paths into the power stack. This is a showcase, not a production order; shipment volumes, revenue and competition remain uncertain. x.com
Navitas is a one-customer concentration story facing heavy competition from tier-one suppliers. Its GaN portfolio winning Nvidia adoption played out, but STMicroelectronics and Infineon also supply Nvidia and are strong in GaN and SiC. GaN output may quadruple by 2030, yet SiC prices were hammered by Chinese capacity, unresolved, so revenue and margins could diverge sharply. Power and thermal efficiency are better played across these names than through Navitas alone. x.com
AI infrastructure bottlenecks could give eight stocks as much as 18x upside. Nvidia supplies frontier-model GPUs; Broadcom and Marvell supply custom silicon and networking; TSMC makes advanced chips; Micron supplies sold-out HBM; Vertiv provides power and cooling; Palantir monetizes enterprise AI; Alphabet spans TPUs, research, cloud and apps. The list tracks where AI infrastructure spending is flowing. x.com x.com
