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Grey ATX power supply unit with single fan and multiple cable connectors

Replace Power

Replace Power RPSU-C99-27 420W ATX power supply

SKU CH-3C55-4MTYJ MPN RPSU-C99-27

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

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight0.1
  • 420W output powers demanding desktop builds
  • 110V and 220V switchable input suits global mains
  • 80mm fan cools the unit quietly
  • 20-pin and 24-pin ATX connector fits most motherboards
  • SATA and Molex leads cover drives and peripherals

420W ATX replacement supply

This Replace Power RPSU-C99-27 unit delivers 420W from a standard ATX form factor. It includes a 20+4 pin motherboard connector, a 12V ATX connector, two large and two small peripheral plugs plus one SATA connector. A switchable 110V or 220V input and an 80mm fan complete the package.

Suits HP desktops needing part 5187-6114

The supply matches the original HP part number 5187-6114, so it fits compatible OEM chassis without adapter cables. Builders who need multiple graphics-card power plugs or modular cabling should look at a different unit because this model provides only the connectors listed above.

420W continuous capacity

The 420W rating handles typical office or home-office workloads with integrated graphics and a few drives. Systems that add a discrete GPU or many storage devices will exceed the available headroom and require a higher-wattage design.

Highlights

  • 420W output powers demanding desktop builds
  • 110V and 220V switchable input suits global mains
  • 80mm fan cools the unit quietly
  • 20-pin and 24-pin ATX connector fits most motherboards
  • SATA and Molex leads cover drives and peripherals

Specifications

BrandReplace Power
ModelRPSU-C99-27
ColorGrey
TypeATX
Fans1
Weight0.1

Questions about this item

What motherboard connector must my board have to use the 20+4 pin ATX plug on this RPSU-C99-27?

Your motherboard needs either a 20-pin or 24-pin ATX power socket; the 14-inch cable on this unit fits both configurations.

Will the 110V/220V switchable input on this 420W unit work with the voltage in my older HP desktop that used part 5187-6114?

Yes, the slide switch lets you select 110V or 220V to match the mains supply that the original HP chassis expected.

How can I confirm the 80mm fan is spinning correctly after I install this grey ATX supply?

Power on the system and listen for the single 80mm fan; steady airflow from the rear grille shows the cooling is active.

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