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Rectangular black metal internal PSU with multicolour label and fan grille

DELL

DELL M178R ATX12V 180W Power Supply

SKU CH-YQPQ-0A0N0

Internal 180 W ATX12V power supply compatible with Dell OptiPlex 780 and Vostro 460 desktops

  • ColorMulticolor
  • TypeATX12V
  • 180 W output powers OptiPlex 780 and Vostro 460 systems
  • ATX12V form factor fits standard internal chassis slots
  • Genuine Dell part M178R ensures exact voltage regulation
  • New condition guarantees full rated performance from first boot
  • Multicolor wiring harness simplifies cable identification during installation

Direct replacement for OptiPlex 780 and Vostro 460

This Dell M178R unit is a 180 W ATX12V power supply built to the original equipment specification. It fits the internal power cavity of the OptiPlex 780 and Vostro 460 desktop chassis. The multicolor label matches the factory appearance of those systems.

Verify the Dell model

Confirm that the target machine is an OptiPlex 780 or Vostro 460, as the connector layout and mounting tabs are specific to those platforms. Other Dell desktops or standard ATX cases will not align with the proprietary pin-outs or bracket positions. The unit is new and unused.

Rated at 180 W with standard internal cooling

The supply delivers up to 180 watts through its native ATX12V rails for typical office workloads. An internal fan provides airflow within the original chassis design. Acoustic output and thermal behaviour follow the baseline profile Dell validated for these two models.

Highlights

  • 180 W output powers OptiPlex 780 and Vostro 460 systems
  • ATX12V form factor fits standard internal chassis slots
  • Genuine Dell part M178R ensures exact voltage regulation
  • New condition guarantees full rated performance from first boot
  • Multicolor wiring harness simplifies cable identification during installation

Specifications

BrandDELL
ColorMulticolor
TypeATX12V

Questions about this item

Does the M178R ship with every cable needed for an OptiPlex 780?

The M178R is an internal ATX12V unit built for Dell OptiPlex 780 and Vostro 460 systems; it connects directly to the motherboard and drive bays inside those chassis.

Which Dell desktop is this 180 W unit designed for?

It is specified for the OptiPlex 780 and the Vostro 460, both of which require an ATX12V form-factor supply rated at 180 W.

Will 180 W be enough for a graphics card upgrade in my OptiPlex 780?

The 180 W rating covers the original OptiPlex 780 configuration; adding a discrete graphics card usually demands a higher-wattage supply.

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