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Rectangular ATX power supply unit, matte black metal casing, standard rear fan grille, side label visible

godream

godream 240W ATX power supply for Optiplex 390 790 990

SKU CH-KYHX-56K9H

Replacement ATX power supply delivering 240W for Optiplex 390, 790 and 990 systems

  • TypeATX
  • Direct replacement for Dell OptiPlex 390, 790 and 990
  • 240 W output powers standard office components
  • ATX form factor fits existing chassis mounting points
  • Brand-new unit supplied in original packaging

Replacement PSU for Optiplex 390 790 990

This 240W ATX power supply replaces the original H240ES-01, AC240ES-01 or D240ES-01 units in Dell Optiplex 390, 790 and 990 desktops. It restores reliable power delivery for everyday office tasks and general home use. The unit fits the standard ATX form factor used by these specific models.

No bundled accessories or software included

The package contains only the power supply itself. Buyers who need mounting screws, extra cables or a power cord must source them separately. Builders requiring higher wattage for discrete graphics cards or additional drives should verify compatibility before purchase.

Highlights

  • Direct replacement for Dell OptiPlex 390, 790 and 990
  • 240 W output powers standard office components
  • ATX form factor fits existing chassis mounting points
  • Brand-new unit supplied in original packaging

Specifications

TypeATX

Questions about this item

Will the internal fan need replacement after a few years of continuous use?

The unit uses a single internal cooling fan; under normal office workloads it typically runs for many years before bearing noise or reduced airflow signals a swap is needed.

What power limit will be reached first when the system runs at full load for extended periods?

The 240 W total output ceiling is the first hard limit; sustained draws at or above that level will trigger the built-in over-power protection.

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