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Grey ATX power supply unit with single fan and multiple cables

Replace Power

Replace Power AP-MPS3ATX30-9 300W ATX power supply

SKU CH-HFZ4-PE7NM MPN AP-MPS3ATX30-9

300W ATX power supply with one fan, 20+4-pin ATX, 4-pin ATX12V, two peripheral, one floppy and three SATA connectors, weighing 0.1 kg

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Direct replacement for Compaq DPS-300GB A 463317-001
  • 300W output powers standard desktop builds
  • High efficiency with low ripple and noise
  • Over voltage protection safeguards components
  • 12 connectors include SATA and ATX power

Replace Power 300W ATX Unit

The Replace Power AP-MPS3ATX30-9 is a 300W ATX power supply built to replace the Compaq DPS-300GB A 463317-001 unit. It delivers steady power for desktop PCs and weighs 0.1 kg with a single cooling fan.

Suits Compaq Replacement Builds

This unit fits owners of Compaq systems needing a direct DPS-300GB A replacement and builders using standard ATX cases with 20+4 pin motherboards. It is not for systems requiring higher wattage, modular cabling or modern GPU power connectors beyond the provided 4-pin ATX12V lead.

300W ATX With SATA Connectors

The supply provides 300W through one 20+4 pin ATX connector, one 4-pin ATX12V connector, two peripheral connectors, one floppy connector and three SATA power connectors for drives.

How it compares

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

Price $65.99
Cheaper than about 81% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Model nameAP-MPS3ATX30-9
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

How much heat and noise does the 300W unit with its single fan produce during all-day use?

The 300W design uses one fan to move air through the chassis; typical office workloads keep the fan at low speed so noise stays modest and case temperatures remain manageable.

Which cables must already be present in the case for the 20+4-pin ATX, 4-pin ATX12V and three SATA connectors to plug in?

Your motherboard needs a 20+4-pin ATX socket and a 4-pin ATX12V socket, while each drive requires a SATA power port; the supply also includes two peripheral and one floppy connector for older devices.

Will the grey 300W ATX unit power a legacy Compaq system that originally used the DPS-300GB A 463317-001?

Yes, this Replace Power model is built to match the DPS-300GB A 463317-001 pin-out and 300W rating, so it fits the same ATX mounting holes and connector layout.

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