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Grey ATX power supply unit with single fan

Replace Power

Replace Power AP-MPS3ATX30-16 300W ATX power supply

SKU CH-4T6H-4SKJ5 MPN AP-MPS3ATX30-16

300W ATX replacement unit for Bestec ATX-300-12E and ATX-300-12Z DDR systems with SATA, peripheral and floppy connectors

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight0.1
  • Delivers 300W of steady power for reliable system operation
  • Single fan provides active cooling within the ATX chassis
  • Comprehensive connector set includes 20+4-pin ATX, 4-pin ATX12V, peripheral, floppy and three SATA power connectors
  • Built-in output over-voltage protection safeguards connected components
  • Direct replacement for Bestec ATX-300-12E Rev D1R and ATX-300-12Z DDR units

Direct replacement for Bestec ATX-300-12E

This 300W ATX power supply replaces the Bestec ATX-300-12E Rev D1R and ATX-300-12Z DDR units. It fits standard ATX cases and delivers steady power for office desktops and basic home systems. The grey enclosure weighs 0.1 kg and includes a single cooling fan.

Standard ATX connectors simplify installation

The unit provides one 20+4-pin ATX connector, one 4-pin ATX12V connector, two peripheral connectors, one floppy connector and three SATA connectors. Cable lengths follow the original Bestec layout so routing matches the factory harness. The only common issue is the short 4-pin CPU lead in some deep chassis.

300W continuous output with protection circuits

Over-voltage protection and low ripple keep voltages stable for a typical motherboard, one hard drive and integrated graphics. Headroom runs out when a discrete graphics card or multiple drives are added. The supply is not suited for high-performance builds.

Points forts

  • Delivers 300W of steady power for reliable system operation
  • Single fan provides active cooling within the ATX chassis
  • Comprehensive connector set includes 20+4-pin ATX, 4-pin ATX12V, peripheral, floppy and three SATA power connectors
  • Built-in output over-voltage protection safeguards connected components
  • Direct replacement for Bestec ATX-300-12E Rev D1R and ATX-300-12Z DDR units

Caractéristiques

BrandReplace Power
ModelAP-MPS3ATX30-16
ColorGrey
TypeATX
Fans1
Weight0.1

Questions sur cet article

How do I confirm the 300W unit is running correctly after fitting it?

Power on the PC and check that the system starts without shutdowns; the single fan should spin and the grey chassis will feel warm but not hot under normal load.

What connectors come fitted on this grey ATX supply?

One 20+4-pin ATX connector, one 4-pin ATX12V connector, two peripheral power connectors, one floppy drive connector and three SATA power connectors are built in.

Which Replace Power model matches a Bestec ATX-300-12E Rev D1R or ATX-300-12Z DDR?

The AP-MPS3ATX30-16 is the direct 300W replacement for those Bestec units.

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