WS3000 3,000W ATX 3.1 PCIe 5.1 Ready Power Supply
#3 in Power Supplies · Rated 4.6
Corsair's massive 3 kW PSU for extreme builds
Corsair's WS3000 pushes a new class of high-widelity power for extreme multi-GPU and CPU setups. Delivering up to 3,000W, it uses a single-rail design with a native 12V-2x6 GPU cable set, and ATX 3.1 plus PCIe 5.1 capability to handle the spikes of top-tier GPUs and CPUs. Despite its heft, Corsair aims to keep cable management straightforward with four native 12V-2x6 GPU cables and a compact chassis. The WS3000 targets enthusiasts building professional render farms, AI workstations, or 4K/NEC-grade content rigs that demand reliable, stable power at very high loads. The unit carries a 10-year warranty and premium build-quality typical of Corsair’s flagship PSUs, but it sits in a niche segment with niche demand, contributing to its selective popularity.
Features
- 3,000W continuous output
- Single-rail +12V design
- ATX 3.1 & PCIe 5.1 compliant
- Four native 12V-2x6 GPU cables
- 10-year warranty
Pros
- Extreme power readiness for multi-GPU builds
- High-quality components and protection features
- Compact for a 3 kW unit
Cons
- Very high price for most builds
- Overkill for most gamers unless required by GPU mix