CORSAIR WS3000: Everything You Need to Know

The CORSAIR WS3000 is a 3000‑watt, fully‑modular ATX 3.1 power supply designed for multi‑GPU workstations that need serious, sustained power delivery. Think AI/ML, 3D rendering, and pro content creation.

It’s compact for its class (175 mm long), delivers 80 PLUS 230V EU Platinum efficiency, and ships with four native 12V‑2x6 (12+4‑pin) cables for next‑gen GPUs.

• Efficiency: 80 PLUS 230V EU Platinum
• Form factor: ATX 3.1, PCIe 5.1
• Modularity: Fully modular (Type 4 debossed cables)
• Dimensions (L×W×H): 175 × 150 × 86 mm
• Operating temp (continuous rating): 40 °C
• Fan: 140 mm double‑ball‑bearing (DBB),
• Zero RPM: No
• iCUE support: No
• Warranty: 10 years
• AC Input: 220–240 V AC, 16 A, 47–63 Hz

(Cables are Type-4, debossed, and include cable combs (for 24‑pin, EPS, PCIe, and 12V‑2x6)

• 3000W continuous output (12V rail: 250A) with 80 PLUS 230V EU Platinum efficiency
• ATX 3.1 + PCIe 5.1 ready, with 4× native 12V‑2x6 (12+4‑pin) 600W GPU cables
• Up to 8× PCIe 8‑pin connectors (via 4× dual 6+2‑pin cables)
• 2× EPS12V (4+4‑pin) for high‑core‑count workstation CPUs
• Fully modular Type 4 debossed cable kit
• 140 mm double‑ball‑bearing fan, no Zero RPM mode
• Compact 175 × 150 × 86 mm chassis
• Ten‑year warranty
• MSRP: $599.99
• AC input: 220–240 V only (16 A, 47–63 Hz) - not for 110/120 V outlets

THE WS3000 is CORSAIR's first PSU rated above 1600 W, purpose‑built to power today’s and tomorrow’s multi‑GPU workstation builds. With four native 12V‑2x6 outputs and eight traditional 8‑pin PCIe connectors, it’s engineered to feed multiple high‑draw graphics cards while keeping cabling clean and predictable.

System integrators and creative pros building heavy compute boxes: multi‑GPU rendering nodes, AI/ML training rigs, and high‑resolution post‑production workstations. If your build needs several top‑tier GPUs plus a hungry workstation CPU, the WS3000 is the correct choice.

• Four native 12V‑2x6 (12+4‑pin) outputs rated for 600 W each, so you can wire modern GPUs directly without adapters.
• One of the most compact 2000W+ supplies with a 175mm depth. this means it fits easier in standard cases compared to most ultra‑high‑watt units.
• Workstation‑first cabling: up to 8× PCIe 8‑pin and 2× EPS12V included in the box.
• Industrial‑grade cooling: a 140 mm double‑ball‑bearing fan for durability under sustained loads (note: no Zero RPM mode).
• ATX 3.1 / PCIe 5.1 compliance.

The focus here is reliability under heavy, sustained load. The WS3000 uses a 140 mm double‑ball‑bearing fan and does not support Zero RPM fan stop; at high loads you should expect audible airflow. For a compute workstation, that trade‑off favors longevity and thermals.

WS3000 operates on 220–240 V AC only (16 A). If you’re in a 110/120 V region, you’ll need an appropriate 220–240 V circuit.