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Rectangular metal ATX power supply unit with single fan grille and cable bundle

Replace Power

Replace Power RPMPS3420-2 300 W ATX power supply

SKU CH-1DYR-9PV39 MPN RPMPS3420-2

A 300 W ATX power supply with 20+4-pin, 4-pin ATX12V, three SATA and two peripheral connectors, compatible with Liteon PS-5251-7, PS-5281-7VR and PS-5301-08HA units

  • TypeATX
  • Fans1
  • Weight2
  • 300 W output powers typical desktop builds
  • Direct replacement for Liteon PS-5251-7 PS-5281-7VR PS-5301-08HA units
  • 20+4 pin ATX connector fits modern motherboards
  • 4-pin ATX12V and three SATA connectors cover CPU and drives
  • High efficiency with low ripple and over-voltage protection

Replacement ATX Supply for Liteon Units

The Replace Power RPMPS3420-2 is a 300 W ATX power module designed as a direct replacement for Liteon PS-5251-7, PS-5281-7VR and PS-5301-08HA units. It delivers standard ATX output through a single fan cooled chassis.

Ideal for restoring legacy desktops

This unit suits owners of compatible Liteon-equipped PCs who need a like-for-like swap to restore operation. Builders assembling new systems or requiring higher wattage, modular cabling or modern standby rails should look elsewhere.

Steady output under continuous load

High efficiency and low ripple and noise ratings help maintain stable voltages during extended use. Output over voltage protection guards connected components if the supply drifts beyond safe limits.

Points forts

  • 300 W output powers typical desktop builds
  • Direct replacement for Liteon PS-5251-7 PS-5281-7VR PS-5301-08HA units
  • 20+4 pin ATX connector fits modern motherboards
  • 4-pin ATX12V and three SATA connectors cover CPU and drives
  • High efficiency with low ripple and over-voltage protection

Caractéristiques

BrandReplace Power
ModelRPMPS3420-2
TypeATX
Fans1
Weight2

Questions sur cet article

Which motherboard power connectors does the RPMPS3420-2 provide for an ATX build?

It supplies one 20+4-pin ATX connector and one 4-pin ATX12V connector, matching standard ATX motherboard requirements.

Can the RPMPS3420-2 replace a Liteon PS-5251-7 unit in an older chassis without cable changes?

Yes, it is a direct replacement for Liteon PS-5251-7, PS-5281-7VR and PS-5301-08HA models and uses the same connector layout.

How can I confirm the RPMPS3420-2 is delivering power correctly after installation?

The single fan should spin, the system should POST, and drives connected to the three SATA power connectors should spin up normally.

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