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Grey ATX power supply unit with single 80mm fan and side ventilation grille

Replace Power

Replace Power RPSU-C99-57 420W ATX power supply

SKU CH-4FZG-6HM6Q MPN RPSU-C99-57

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

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight0.1
  • 420W output powers compatible eMachines desktops
  • 110V and 220V switchable input suits global mains
  • 80mm fan provides active cooling
  • 20+4 pin ATX and SATA connectors included
  • Direct replacement for T3120 T3095 T2984 T2894 T2862 T2778

Replacement power supply for eMachines desktops

The Replace Power RPSU-C99-57 is a 420W ATX unit built to replace the original supply in eMachines T3120 T3095 T2984 T2894 T2862 T2778 systems. It accepts 110V or 220V input via a manual switch and uses an 80mm fan for cooling. The grey chassis fits standard ATX mounting points.

Bundled cable set

The box includes one 15-inch SATA connector one 14-inch ATX connector that supports both 20-pin and 24-pin motherboards one 14-inch 12V ATX connector two 15-inch large peripheral connectors two 6-inch large peripheral connectors and one 6-inch small peripheral connector. These lengths suit the original eMachines chassis layouts.

Straightforward ATX swap

Installation follows the normal ATX procedure: remove the old unit fasten the four mounting screws and plug each keyed connector into its matching socket. The 20+4 pin main cable and the dedicated 12V cable must both seat fully or the system will not start. The fixed cables cannot be shortened so excess length must be routed behind the motherboard tray.

Highlights

  • 420W output powers compatible eMachines desktops
  • 110V and 220V switchable input suits global mains
  • 80mm fan provides active cooling
  • 20+4 pin ATX and SATA connectors included
  • Direct replacement for T3120 T3095 T2984 T2894 T2862 T2778

Specifications

BrandReplace Power
ModelRPSU-C99-57
ColorGrey
TypeATX
Fans1
Weight0.1

Questions about this item

Will the 80 mm fan need cleaning or replacement over time?

The unit uses a single 80 mm fan for cooling; dust buildup can reduce airflow, so periodic cleaning with compressed air is recommended to maintain thermal performance.

What limits sustained output on the 12 V rail?

The 12 V ATX connector supplies up to 12 A; exceeding this current will trigger the protection circuit and shut the supply down.

How much heat and noise does the 420 W unit produce under continuous load?

At full 420 W load the 80 mm fan spins faster, increasing audible noise and exhausting warm air from the rear of the chassis.

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