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Grey ATX power supply unit with single fan

Replace Power

Replace Power AP-MPS3ATX30-32 300W ATX power supply

SKU CH-XZQ5-DGHSH MPN AP-MPS3ATX30-32

A 300W ATX power module with one fan, 20+4-pin ATX, 4-pin ATX12V, two peripheral, one floppy and three SATA connectors

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Delivers 300W steady power for reliable system operation
  • High efficiency design reduces energy waste and heat output
  • Low ripple and noise protects sensitive components from voltage fluctuation
  • Output over-voltage protection safeguards hardware against damaging power spikes
  • Single fan cooling maintains thermal performance in compact ATX form factor

300W ATX replacement module

This Replace Power unit is a direct 300W ATX replacement for Delta DPS-300PB1A, DPS-300PB, DPS-340BB and GPS-300AB-200D models. It fits standard ATX bays and suits builders restoring older office or small-form-factor desktops. A single fan provides cooling in a grey chassis. The module delivers steady power for basic system operation.

20+4 ATX and 4-pin 12V limits

The supply uses a 20+4-pin main connector and a single 4-pin ATX12V connector for the motherboard. Peripheral power comes from two standard peripheral connectors and one floppy drive connector. Three SATA power connectors are available for drives. No PCIe or additional 12V connectors are present, so discrete graphics cards cannot be powered.

Three SATA drives and light loads

With 300W total output the unit comfortably runs a CPU, integrated graphics, three SATA drives and a few USB peripherals. It runs out of headroom when a dedicated graphics card or many spinning drives are added. The 4-pin 12V rail limits CPU power delivery, making high-TDP processors unsuitable. Over-voltage protection guards connected components.

How it compares

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

Price $55.99
Cheaper than about 88% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Model nameAP-MPS3ATX30-32
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

Which version of this 300W unit replaces the Delta DPS-300PB1A and DPS-340BB models?

The AP-MPS3ATX30-32 is built as a direct replacement for Delta DPS-300PB1A, DPS-300PB, DPS-340BB and GPS-300AB-200D units used in various desktop systems.

What does the 300W rating deliver in a working PC?

It supplies a steady 300W through a 20+4-pin ATX connector, a 4-pin ATX12V connector, three SATA connectors, two peripheral connectors and one floppy connector.

Which ATX standard does the 20+4-pin connector follow and what does that limit?

The 20+4-pin ATX connector fits standard ATX motherboards and caps the board power to the unit's 300W total output.

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