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Rectangular ATX power supply, matte black metal casing, fully modular gold connectors visible

ASUS

ASUS Pro WS 1600W Platinum power supply

SKU CH-VK1Z-ZC1FE

Fully modular 1600W ATX 3.1 power supply with 80 PLUS Platinum efficiency, dual 12V-2x6 connectors for dual RTX 5090 GPUs, and dual-ball fan bearings

  • Supply voltage200–240 V
  • Supports dual RTX 5090 cards for heavy AI workloads
  • 80 PLUS Platinum efficiency with Japanese server-grade capacitors
  • ATX 3.1 compliant for enhanced voltage regulation
  • PCIe 5.1 ready with native 12V-2x6 connectors
  • Dual-ball fan bearings last twice as long as sleeve bearings

Heavy-duty workstation power supply

The ASUS Pro WS 1600W Platinum is a fully modular ATX power supply built for workstations that demand extreme multi-GPU power. It carries 80 PLUS Platinum certification and meets the ATX 3.1 standard. Native 12V-2x6 connectors with gold-plated pins deliver reliable current to modern graphics cards. Japanese server-grade capacitors and extruded aluminium heatsinks support stable, efficient operation.

Suited for AI and deep-learning rigs needing dual

This unit targets builders assembling 4-way multi-GPU AI solutions or dual RTX 5090 configurations where voltage stability is critical. The dual-ball bearing fan and premium components favour continuous high-load use. It is not for systems running on 200–240 V mains only where that voltage is unavailable, nor for builds that require only modest GPU power where this capacity would be excessive.

1600 W output with ATX 3.1 and PCIe 5.1 readiness

The single specification that decides fit is the 1600 W rating combined with ATX 3.1 compliance and native 12V-2x6 connectors. This capacity and connector set enable dual RTX 5090 support for demanding AI workloads. Verify that your mains supply provides 200–240 V and that your chassis accommodates a high-wattage fully modular unit.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $550.99
Pricier than about 90% of the 10,869 comparable items (median $142.99).

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Specifications

Power
Supply voltage200–240 V

Questions about this item

What case clearance and input voltage does the 1600W unit require?

The power supply follows the ATX 3.1 form factor and operates on 200 - 240 V input, so ensure your chassis fits a standard ATX PSU and your mains supply matches this range.

Which cables must be attached for dual RTX 5090 cards and what is the common routing error?

Connect the native 12V-2x6 PCIe 5.1 cables directly from the modular panel to each graphics card; avoid daisy-chaining or using adapters, as each 5090 needs its own dedicated run for stable 12 V delivery.

When should the fan bearing be inspected and what capacitor rating indicates replacement timing?

The dual-ball bearing fan is rated for roughly twice the lifespan of sleeve designs, while the 80 PLUS Platinum Japanese server-grade capacitors provide long-term reliability; plan a visual dust check every 12 months and listen for bearing noise as the primary service indicator.

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