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Grey ATX power supply unit with single fan and multiple cables

Replace Power

Replace Power AP-MPS3ATX30-40 300W ATX power supply

SKU CH-222F-SHD9T MPN AP-MPS3ATX30-40

300W ATX power supply with 20+4-pin, 4-pin ATX12V, three SATA and two peripheral connectors for Gateway GT5620 and GT5654 systems

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Reliable 300W output for stable Gateway GT5620 operation
  • High efficiency design reduces energy waste during use
  • Low ripple and noise protects sensitive components
  • Over-voltage protection safeguards hardware from power spikes
  • Single fan cooling maintains quiet thermal performance

Replacement PSU for Gateway GT5620

This 300W ATX power supply replaces the original unit in Gateway GT5620 and GT5654 Performance 1400 desktops. It also fits other compatible systems from brands such as Dell and HP. A single fan provides cooling for the grey chassis.

Connector set expands compatibility

The bundle includes one 20+4-pin ATX connector, one 4-pin ATX12V connector, two peripheral power connectors, one floppy drive connector and three SATA connectors. These cables let the unit serve older and newer drives in a single build.

300W steady output with protection

The supply delivers 300 watts of continuous power with high efficiency and low ripple and noise. Output over-voltage protection guards connected components. It handles typical office and legacy workloads but lacks headroom for modern discrete graphics cards.

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-MPS3ATX30-40
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

How often will the single cooling fan need cleaning or replacement?

The unit has one fan; dust it with compressed air every six to twelve months and replace it only if bearings become noisy or airflow drops.

Which protection circuit will trip first during a long, heavy load?

Output over-voltage protection activates before the 300 W limit is exceeded, shutting the rail down to protect connected parts.

How loud and hot does the grey ATX unit get when running all day?

One fan keeps noise low at typical loads; the chassis warms to the touch but stays within normal ATX operating temperatures.

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