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Grey ATX power supply unit with single fan and standard connectors

Replace Power

Replace Power AP-MPS3ATX30-19 300W ATX power supply

SKU CH-M2S6-7B270 MPN AP-MPS3ATX30-19

300 W ATX unit with 20+4-pin, 4-pin, three SATA, two peripheral and one floppy connector

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • 300W steady output powers compatible desktop systems
  • High efficiency design reduces wasted energy during operation
  • Low ripple and noise protects sensitive components
  • Over voltage protection guards against damaging power spikes
  • Multiple connectors include 20+4-pin ATX, 4-pin ATX12V, SATA and peripheral

Replacement 300W ATX power module

This Replace Power AP-MPS3ATX30-19 is a 300 watt ATX power supply designed to replace the Athena Power MPS3ATX20 or DR-B300ATX unit. It suits owners of compatible Dell, HP or similar desktop systems that need a direct swap for a failed or ageing PSU.

Check connector fit and chassis space

Verify that your motherboard accepts a 20+4 pin ATX connector and a 4 pin ATX12V connector before ordering. Ensure the case can accommodate a standard ATX form factor unit and that the single included fan has a clear airflow path.

Grey steel enclosure with fixed cable set

The grey housing weighs 0.1 and carries one 20+4 pin ATX, one 4 pin ATX12V, two peripheral, one floppy and three SATA power connectors. All cables are fixed, so plan routing around the existing loom; the single fan exhausts heat through the rear grille.

How it compares

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

Price $58.99
Cheaper than about 86% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameReplace Power
Model nameAP-MPS3ATX30-19
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

What connectors come with the Replace Power AP-MPS3ATX30-19 and what must I buy separately?

The unit includes one 20+4-pin ATX connector, one 4-pin ATX12V connector, two peripheral connectors, one floppy connector and three SATA power connectors. No extra cables are required for a standard ATX build.

How do I choose between the listed versions or capacities for this Replace Power supply?

This model is a single 300W ATX unit in grey with one fan. There are no alternative wattage or colour options listed for the AP-MPS3ATX30-19.

What does the 300W rating mean once the supply is installed in my machine?

It delivers up to 300 watts of continuous power with high efficiency, low ripple and noise, and output over-voltage protection for stable operation.

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