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Rectangular ATX power supply unit in metal finish with single fan visible

Replace Power

Replace Power DPS-300AB-24 G 300W ATX power supply

SKU CH-TXP0-NYDRE

ATX power supply delivers 300 W for compatible Dell systems

  • Fan configuration1
  • Product typeATX
  • Product weight2.2
  • 300 W output powers compatible Dell desktops
  • Single fan provides active cooling for stable operation
  • 2 kg unit fits standard ATX mounting points
  • Replaces Dell H057N H056N G9MTY 5V0JP part numbers

Compatible Dell Replacement

This ATX power supply replaces Dell part numbers H057N, H056N, G9MTY and 5V0JP. It is built for owners of compatible Dell desktops who need a direct swap for a failed or ageing unit. The 300W output matches the original specification for supported systems.

Single Fan ATX Fit

The unit uses a standard ATX form factor with one cooling fan and weighs 2.2 units. It requires a case and motherboard that accept ATX power supplies and the Dell-specific pin-outs listed above. Builders needing higher wattage or a different connector layout should look elsewhere.

How it compares

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

Price $60.99
Cheaper than about 85% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Product typeATX
More details
Fan configuration1

Questions about this item

What is the maximum continuous power the 300W ATX unit can deliver under sustained load?

The unit is rated for 300 W continuous output, so sustained loads up to that level are within specification.

How loud does the single fan become when the supply runs all day?

The design uses one fan that spins only as fast as needed to keep internal temperatures in check, keeping acoustic output low during extended operation.

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