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Grey ATX power supply unit with single fan and standard connector cables

Replace Power

Replace Power AP-MPS3ATX30-14 300W ATX power supply

SKU CH-760G-E79Z1 MPN AP-MPS3ATX30-14

A 300W ATX replacement unit with one fan, a 20+4-pin main connector, a 4-pin CPU connector, two peripheral plugs, one floppy plug and three SATA power connectors

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight0.1
  • Direct replacement for Bestec ATX0300D5WC Rev A and ATS-150 units
  • 300 W output delivers steady power for desktop systems
  • High efficiency design with low ripple and noise performance
  • Output over-voltage protection safeguards connected components
  • One 20+4-pin ATX, one 4-pin ATX12V, two peripheral, one floppy and three SATA connectors

Replacement for ATX0300D5WC Rev A / ATS-150

This 300W ATX power supply replaces the Bestec ATX0300D5WC Rev A and ATS-150 units. It fits standard desktop chassis that require a direct swap for those specific OEM models. The grey unit weighs .1 and includes a single fan for cooling. It suits repair technicians or owners restoring older office or home PCs.

Connector set supports legacy and current drives

The bundle provides one 20+4-pin ATX connector and one 4-pin ATX12V connector for the motherboard. Three SATA power connectors serve modern solid-state or hard drives. Two peripheral connectors and one floppy drive connector handle older IDE devices. This mix lets you power a mixed-drive configuration without adapters.

Protections and form factor aid daily reliability

High efficiency and low ripple and noise reduce waste heat and electrical interference. Output over voltage protection guards connected components against spikes. The standard ATX footprint aligns with existing mounting holes in compatible cases. A single 12-cm fan exhausts heat through the rear grille, keeping cable routing simple during assembly.

Highlights

  • Direct replacement for Bestec ATX0300D5WC Rev A and ATS-150 units
  • 300 W output delivers steady power for desktop systems
  • High efficiency design with low ripple and noise performance
  • Output over-voltage protection safeguards connected components
  • One 20+4-pin ATX, one 4-pin ATX12V, two peripheral, one floppy and three SATA connectors

Specifications

BrandReplace Power
ModelAP-MPS3ATX30-14
ColorGrey
TypeATX
Fans1
Weight0.1

Questions about this item

Will the 20+4-pin ATX connector or the single fan need replacing after long use?

The 20+4-pin ATX connector is rated for the unit's lifetime; the single fan is the only moving part and may eventually require cleaning or replacement if bearings wear.

Which protection trips first when the 300W unit runs at full load continuously?

Output over-voltage protection activates before the 300W limit is exceeded, shutting the supply down to prevent damage.

How loud and hot does the single fan get during all-day operation?

The unit is specified for low ripple and noise; the single fan runs at a modest speed to keep temperatures within safe limits for continuous 300W delivery.

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