Corsair is turning heads with the WS3000, a 3000W power supply built for serious workstations rather than typical gaming rigs. If you’re assembling a machine with multiple high-end GPUs for AI/ML training, rendering, or other compute-heavy tasks, this PSU is designed to deliver stable power without breaking a sweat.
The headline feature is capacity: 3000 watts, enough to feed up to four flagship graphics cards such as the GeForce RTX 5090. It ships with four native 12V-2×6 connectors and is fully ATX 3.1 compliant, ensuring modern power delivery for next‑gen GPUs. Corsair also includes four traditional 8‑pin PCIe outputs, which can be split into eight 8‑pin connectors using the included cables, giving you flexible options for mixed or legacy setups.
Despite its massive output, the WS3000 is surprisingly compact for its class at 175 x 150 x 86 mm. Under the hood, a single +12V rail capable of delivering up to 250A simplifies load distribution across multiple GPUs and other high‑draw components. To handle the thermal demands of sustained heavy loads, Corsair uses industrial‑grade components and an active cooling strategy. There’s no Zero RPM fan mode here; a 140mm double ball bearing fan provides constant airflow. It may be louder at higher loads, but the priority is reliability and temperature control in mission‑critical builds.
Important to note: the WS3000 is designed for 220–240V AC input only. If you’re in a region with 110/120V mains, you’ll need a step‑up converter or equipment with dual‑voltage support to use this unit.
Key specs and highlights:
– 3000W total capacity, 80 Plus Platinum efficiency
– Four native 12V-2×6 GPU connectors (ATX 3.1 compliant)
– Four 8‑pin PCIe connectors, split to eight via included cables
– Single +12V rail delivering up to 250A
– 140mm double ball bearing cooling fan; no Zero RPM mode
– Dimensions: 175 x 150 x 86 mm
– Designed for 220–240V AC input
– Price: $599
– Warranty: 10 years
For creators, researchers, and professionals running multi‑GPU workstations, the Corsair WS3000 focuses on what matters most: abundant, stable power and long‑term dependability.
