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Rectangular metal ATX power supply, matte finish, single fan grille, 1.5 kg

Replace Power

Replace Power RPSU-D2537F3R 420W ATX power supply

SKU CH-ZTYQ-K7SNE MPN RPSU-D2537F3R

A 420 W ATX power supply with reduced depth, built-in 20+4 pin adapter and multiple protection circuits for HP Compaq and eMachine systems

  • Fan configuration1
  • Product typeATX
  • Product weight1.5
  • 420 W output powers demanding legacy systems
  • 20+4 pin adapter fits 24 and 20 pin motherboards
  • Reduced 5.9 inch depth suits compact cases
  • Over current, over power, over voltage and short circuit protection
  • Switchable 110 to 260 V AC input works worldwide

Replacement ATX power supply

This 420 watt ATX unit replaces several older HP Compaq and eMachine power supplies including the HIPRO HP-D2537F3R and HP-D3057F3R models. It is designed for owners of legacy desktops who need a direct swap without modifying the case or wiring. The reduced depth improves fit in compact chassis where standard length units would interfere with drive cages or motherboard headers.

Built-in 20+4 pin ATX connector

A single 20+4 pin connector supports both 20 pin and 24 pin motherboard headers, removing the need for a separate adapter. The supply also provides one P4 12V four-pin connector, three SATA power connectors, three LP4 four-pin connectors and one floppy four-pin connector for older peripherals. Dual +12V rails each deliver 8A while the +3.3V and +5V rails supply 11A and 12A respectively.

Fits reduced-depth ATX bays

Measuring 5.9 inches wide by 3.4 inches high by 4 inches deep, the unit fits standard ATX mounting holes while leaving extra clearance behind the motherboard tray. It operates on 110 to 260 volt AC input with a manual voltage selector and includes over-current, over-power, over-voltage and short-circuit protection. A single internal fan cools the unit across an operating range of 0 to 50 degrees Celsius at full load.

How it compares

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

Price $55.99
Cheaper than about 88% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Model nameRPSU-D2537F3R
Product typeATX
More details
Fan configuration1

Questions about this item

How much continuous power can the 420W rating actually deliver to a system?

The unit supplies up to 420 watts total with +12V rails rated at 8A each, +5V at 12A, +3.3V at 11A, -12V at 0.3A and +5VSB at 2A.

What motherboard power connectors does the 20+4 pin ATX plug support?

The single 20+4 pin connector mates with both 24-pin and 20-pin ATX motherboards, and a separate 4-pin P4 12V connector is included for CPU power.

Will the reduced 4-inch depth fit my slim HP Compaq chassis?

At 5.9" wide, 3.4" high and 4" deep the supply matches the ATX form factor while the shorter depth clears tight legacy cases such as the listed HP and eMachine models.

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