We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Dell RM117 275W power supply unit for OptiPlex SFF

DELL

DELL RM117 275W Power Supply OptiPlex GX745 740 755 SFF

SKU CH-H27D-N9R7B

A 275 W PSU for OptiPlex GX745, 740, 745 and 755 small-form-factor systems

  • 275 W output powers OptiPlex SFF desktops reliably
  • Genuine Dell RM117 part ensures exact fit and function
  • Compatible with GX745, 740, 745 and 755 models
  • Brand-new unit delivers stable voltage for daily workloads

Dell RM117 275W PSU for OptiPlex SFF

This new Dell RM117 power supply delivers 275 watts for OptiPlex GX745, 740, 745 and 755 small form factor desktops. It is a direct replacement unit built to the original manufacturer specifications for these specific chassis. The unit restores reliable power to aging workstations requiring this exact form factor and connector layout.

Compatibility limits for non-matching systems

This supply suits owners of the listed OptiPlex SFF models needing a like-for-like replacement. It will not fit standard ATX cases or proprietary units outside the GX745, 740, 745 and 755 series. Builders requiring higher wattage for upgraded graphics cards or different motherboard pinouts should look elsewhere.

Highlights

  • 275 W output powers OptiPlex SFF desktops reliably
  • Genuine Dell RM117 part ensures exact fit and function
  • Compatible with GX745, 740, 745 and 755 models
  • Brand-new unit delivers stable voltage for daily workloads

Specifications

No published specifications for this item yet.

Questions about this item

What form factor does the RM117 275 W power supply use for the OptiPlex SFF chassis?

It is built to the Dell small-form-factor layout used in the GX745, 740, 745 and 755 SFF cases, so it aligns with the original mounting points and rear cutout.

What is the correct sequence for connecting the power cables when installing the RM117 unit?

Seat the supply in the chassis and secure it with the retention latch, plug the main ATX connector into the motherboard, then attach the CPU power lead; reversing the order can leave the CPU lead too short to reach.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.