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Rectangular silver metal server power supply unit with ventilation grille and rear connector

ASRock Rack

ASRock Rack 04G180003001AK 1600W CRPS server power supply

SKU CH-5Y94-W5YYJ MPN 04G180003001AK

1600W CRPS server power supply with reverse fan airflow for 2U chassis

  • Max wattage1600 W
  • Product dimensions7.68 in × 2.89 in × 1.54 in
  • Product weight6.61 lb (3 kg)
  • 1600 W maximum power supports dense server workloads
  • CRPS form factor fits 2U2E-F and ROME2 chassis
  • Reverse airflow fan directs heat out the rear
  • Compact 7.68" x 2.89" x 1.54" size saves rack space
  • 61 lb unit weight eases installation and handling

High-Capacity Server Power Supply

The ASRock Rack 04G180003001AK is a 1600W CRPS power supply designed for server chassis that accept this redundant form factor. It delivers high-output power for dense compute nodes or storage arrays requiring substantial wattage in a compact footprint.

Suited for Redundant CRPS Bays

This unit fits servers built for CRPS modules with reverse airflow, such as the referenced 2U2E-F and ROME2 platforms. It is not for towers or workstations using standard ATX or EPS supplies, nor for systems lacking the matching CRPS cage and backplane.

Verify Chassis Compatibility First

Confirm your server accepts a CRPS supply measuring 7.68" x 2.89" x 1.54" and weighing 6.61 lbs. Ensure the chassis provides the correct connector pinout and reverse-fan cooling path before ordering.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $187.99
Pricier than about 67% of the 3,798 comparable items (median $131.99).
Max wattage 1600 W
Higher than about 90% of the 235 comparable items (median 668 W).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASRock Rack
Model name04G180003001AK
Power
Max wattage1600 W
Size & build
Product dimensions7.68 in × 2.89 in × 1.54 in
Product weight6.61 lb (3 kg)
Shipping weight0.95 kg
Package size318 × 76 × 38 mm

Questions about this item

What server chassis or backplane is required to accept this CRPS 1600W form factor?

This supply uses the CRPS redundant form factor and fits 2U2E-F and ROME2 chassis that provide matching CRPS bays.

Will the reverse-airflow fan direction cool properly in a standard front-to-back server?

The fan pulls air from the rear and exhausts toward the front, so it is designed for chassis with reverse airflow paths, not standard front-to-back layouts.

How can I verify the unit is delivering power after installation?

Check the chassis management interface or front-panel LEDs for power-good status and confirm the system posts without power-related errors.

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