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Grey ATX power supply unit with single fan

Replace Power

Replace Power AP-MPS3ATX30-5 300W ATX power supply

SKU CH-K11K-QDH88 MPN AP-MPS3ATX30-5

A 300W ATX power module with one fan, delivering 20+4-pin, 4-pin, three SATA, two peripheral and one floppy connector for Delta DPS-250AB-22E, DPS-250QB-4 and DPS-300AB-15B replacements

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Direct replacement for Delta DPS-250AB-22E DPS-250QB-4 DPS-300AB-15B units
  • 300W output delivers steady power for desktop builds
  • High efficiency with low ripple and noise for stable operation
  • Output over-voltage protection safeguards connected components
  • Full connector set includes 20+4 ATX, 4-pin CPU, three SATA, two peripheral, one floppy

Replacement PSU for Delta models

This Replace Power unit is a 300W ATX power supply designed to replace Delta DPS-250AB-22E, DPS-250QB-4 and DPS-300AB-15B units. It fits standard ATX layouts and ships in a grey enclosure with a single fan. The unit delivers 300 watts of steady power for desktop repairs or fresh builds.

Suits owners of listed Delta units

It matches the connector set of the original Delta models, providing one 20+4-pin ATX, one 4-pin ATX12V, two peripheral, one floppy and three SATA connectors. Builders needing modular cables, higher wattage or different form factors should look elsewhere. The 0.1 kg weight eases handling during installation.

300W rated output

The 300W rating is the single figure that decides fit. If the target system draws more than this supply can deliver, the machine will not run reliably. The unit includes over-voltage protection and low ripple and noise for stable operation.

How it compares

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

Price $57.99
Cheaper than about 87% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Model nameAP-MPS3ATX30-5
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

Does the 300W Replace Power AP-MPS3ATX30-5 have any user-serviceable parts that will need replacement later?

The unit is a sealed power module with no user-serviceable components inside; the only part that may require attention over time is the single internal fan.

What is the first limit reached when the AP-MPS3ATX30-5 runs at full load for extended periods?

The 300W total output rating is the primary limit; sustained loads above this will trigger the built-in over-voltage and over-current protection circuits.

How much noise and heat does the AP-MPS3ATX30-5 produce during all-day operation?

The single fan provides cooling for the 300W module; acoustic output and case temperature will vary with load and chassis airflow, but the design targets low ripple and noise.

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