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Silver rectangular PSU unit, no harness cable included

DELL

DELL H875EF-00 875W Power Supply

SKU CH-8NEW-6YK11 MPN H875EF-00

875-watt power supply for Dell Precision and Alienware workstations, accepts 100-240 V AC input and delivers 12 V output, weighs 3.1 kg, wiring harness not included

  • Weight3.1
  • 875 W output powers demanding workstation builds
  • Wide 100–240 V AC input suits global mains
  • Fits Alienware Area-51, Aurora and Precision T3500, T5500, T7500
  • 12 V single-rail design simplifies GPU cabling
  • 1 kg weight indicates robust internal components

Genuine Dell 875W Workstation PSU

This genuine Dell power supply delivers 875W of continuous output for compatible Alienware and Precision desktops. It accepts AC input from 100V to 240V and provides a 12V rail for demanding components. The unit weighs 3.1 kg and is finished in silver. It is supplied without a wiring harness cable.

Fits Alienware Area-51.

This PSU suits owners of the listed Alienware Area-51, Aurora, Aurora ALX, R2, R3, R4 and Precision T3500, T5500, T7500 models who need a direct replacement. Builders using other chassis, proprietary form factors or non-Dell wiring harnesses should look elsewhere. Systems requiring a different wattage or connector layout are not supported.

875W Output Determines Compatibility

The single specification that decides fit is the 875W power capacity matched to the supported Dell product lines. Verify your workstation model appears in the compatible list before purchase. The 12V output voltage and AC 100-240V input range are fixed by this design.

Highlights

  • 875 W output powers demanding workstation builds
  • Wide 100–240 V AC input suits global mains
  • Fits Alienware Area-51, Aurora and Precision T3500, T5500, T7500
  • 12 V single-rail design simplifies GPU cabling
  • 1 kg weight indicates robust internal components

Specifications

BrandDELL
Weight3.1

Questions about this item

How do I install the DELL H875EF-00 into a Precision T5500, and which step is commonly missed?

Slide the unit into the chassis until it locks, then attach the Dell wiring harness R166H (sold separately) to the motherboard and drives; the harness is not included and is often forgotten.

What maintenance or replacement will this 875W PSU need over time?

The internal cooling fan is the only moving part; expect to clean dust from the intake grille periodically and replace the fan if bearing noise develops after extended use.

What limit appears first when this supply runs at full load continuously?

Thermal protection will trigger before the 875W output can be sustained indefinitely; ensure the workstation’s front intake fans are unobstructed to delay throttling.

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