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Grey ATX power supply unit with single fan

Replace Power

Replace Power RPSU-C99-22 420W ATX power supply

SKU CH-ERQP-K5HW9 MPN RPSU-C99-22

A 420W ATX power supply with an 80mm fan, switchable 110V and 220V input, and connectors including SATA, 20+4 pin ATX, 12V ATX.

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Delivers 420W for HP desktop systems
  • Switchable 110V and 220V input voltage
  • Single 80mm fan provides cooling
  • Includes SATA and 20+4 pin ATX connectors
  • Replaces HP part numbers 366301-007 366307-001 366505-001 462434-001

Replacement ATX 420W unit

This Replace Power RPSU-C99-22 is a 420W ATX power supply designed to replace a failed unit in desktop computers from HP, Dell, Compaq and other common brands. It provides standard 110V and 220V switchable input for worldwide use. The grey enclosure holds a single fan for cooling. It suits owners who need a direct swap for a broken PSU.

Swaps out HP OEM parts 366301-007, 366307-001.

The unit replaces the listed HP original equipment part numbers when those supplies have failed or become unreliable. The jump is worth it when the original unit no longer delivers stable power or has stopped working entirely. No higher-wattage alternative is described in the data, so buyers needing more output should look elsewhere.

Verify 20+4 pin, 12V, SATA and Molex fit

Check that the motherboard accepts the 20+4 pin ATX connector and the separate 12V ATX connector. Confirm the case has space for the included 80mm fan airflow path. Ensure the SATA, large and small peripheral connectors match your drives and devices. The input voltage switch must be set to the local mains before powering on.

How it compares

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

Price $59.99
Cheaper than about 85% of the 10,869 comparable items (median $142.99).

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 nameReplace Power
Model nameRPSU-C99-22
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

Does the RPSU-C99-22 use a standard ATX form factor so it fits a regular PSU bay?

Yes, the unit is a standard ATX type power supply designed to fit a regular ATX PSU bay.

What is the main installation step people miss when swapping in the RPSU-C99-22?

Set the 110V/220V switch to match your mains voltage before connecting the 20+4 pin ATX, 12V ATX, SATA and Molex cables.

Which part of the RPSU-C99-22 will need attention first as the unit ages?

The single 80 mm cooling fan is the only moving component and will be the first item to require cleaning or replacement.

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