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Grey ATX power supply unit with single fan

Replace Power

Replace Power RPSU-C99-1 power supply 420W ATX

SKU CH-5GFN-07EVK MPN RPSU-C99-1

Grey 420W ATX power supply with 20+4 pin, SATA and peripheral connectors, 80mm fan, switchable 110V/220V input, replaces HP 5187-6116, 5188-0129, 5188-7601, AG263PA

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight0.1
  • Reliable 420 W output supports demanding desktop workloads
  • 20+4 pin motherboard connector fits 20 and 24 pin boards
  • One SATA power lead included for modern drives
  • 110 V or 220 V switchable input suits global mains
  • Single 80 mm fan delivers active cooling

Replacement ATX power supply

The Replace Power RPSU-C99-1 is a 420 watt ATX power module designed as a direct replacement for specific HP desktop units including part numbers 5187-6116 5188-0129 5188-7601 and AG263PA. It suits technicians and owners who need to restore power to those compatible systems without modifying the case or wiring. A built-in 80mm fan provides active cooling.

Capacity and headroom

The unit delivers 420 watts of continuous power through a switchable 110V or 220V input. It supplies the standard ATX 20+4 pin motherboard connector a dedicated 12V ATX connector two large peripheral connectors two additional large connectors one small connector and a single SATA connector for drives. Builds requiring multiple SATA devices or additional PCIe power cables will exceed the provided connector count.

Build integration

The grey ATX form factor fits the original mounting points of the listed HP models. Included cable lengths are one 15-inch SATA lead one 14-inch motherboard lead one 14-inch 12V lead two 15-inch large peripheral leads two 6-inch large peripheral leads and one 6-inch small peripheral lead. The fixed cable set frees the builder from sourcing adapters but offers no modular routing for custom cable management.

Highlights

  • Reliable 420 W output supports demanding desktop workloads
  • 20+4 pin motherboard connector fits 20 and 24 pin boards
  • One SATA power lead included for modern drives
  • 110 V or 220 V switchable input suits global mains
  • Single 80 mm fan delivers active cooling

Specifications

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

Questions about this item

Will the 20+4 pin ATX connector on this RPSU-C99-1 work with my older 20-pin motherboard?

Yes, the 20+4 pin ATX connector supports both 20-pin and 24-pin motherboard configurations, so it fits older 20-pin boards directly.

How can I confirm the RPSU-C99-1 is running correctly after installation?

The 80 mm fan should spin and the system should power on without shutdowns; the 110V/220V switch must match your mains voltage.

Which cables come with the RPSU-C99-1 and what might I need to add?

Included: one 15-inch SATA, one 14-inch 20+4 pin ATX, one 14-inch 12V ATX, two 15-inch Molex, two 6-inch Molex, one 6-inch floppy. No extra cables are required for standard builds.

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