Dell

Dell F255E-01 255W Power Supply Replacement - Optiplex

4.0 (13 reviews)

A direct-fit 255W replacement power supply for Dell OptiPlex 580, 760, 780, 960, and 980 desktops.

$58.02*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Dell F255E-01 is a 255-watt power supply unit designed as a direct replacement for several Dell OptiPlex desktop tower models, including the 580, 760, 780, 960, and 980. As an OEM Dell component, it uses the same proprietary connectors and mounting layout as the original factory-installed PSU, which means installation is a simple swap without any adapter cables or bracket modifications. The 255W output is matched to the power requirements of these OptiPlex systems in their standard configurations, covering the motherboard, processor, RAM, storage drives, and optical drive.

This unit is sold in used condition, meaning it has been removed from a previously operating Dell system. While functional, it does not include any warranty coverage, additional cables, or documentation. For users with an OptiPlex desktop that has suffered a power supply failure, this F255E-01 offers a cost-effective way to restore the system to working order without sourcing a more expensive new-old-stock unit. Buyers should confirm their specific OptiPlex model and form factor (desktop, not small form factor or mini-tower) before purchasing to ensure a proper fit.

Specifications

Brand
Dell
Model
F255E-01 / D255P-00
Dell Part Number
RM110
Maximum Output Power
255W
Compatible Systems
Dell OptiPlex 580, 760, 780, 960, 980 DT
Connectors
Standard Dell Desktop Power Connectors
Condition
Used
Included Accessories
None (power supply unit only)

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Pros & Cons

👍 Pros

  • Direct OEM replacement ensures connector and mounting compatibility with supported OptiPlex DT models
  • 255W output provides adequate power for the stock configurations of compatible OptiPlex desktops
  • Lower cost than a new replacement unit, making it a practical repair option for aging systems
  • Known Dell part numbers (F255E-01, D255P-00, RM110) make it easy to verify compatibility before purchasing

👎 Cons

  • Used condition means the unit has an unknown amount of prior runtime and no manufacturer warranty
  • No additional cables or accessories are included, so any missing or damaged internal cables cannot be replaced from this listing
  • 255W maximum output limits the ability to add power-hungry expansion cards like high-end GPUs
  • Dell proprietary connectors prevent this unit from being used in non-Dell systems

Frequently Asked Questions

It is compatible with the Dell OptiPlex 580, 760, 780, 960, and 980 desktop (DT) form factor models.
This is a used unit. It has been pulled from a working system but does not come with additional cables, accessories, or software.
It uses Dell's standard desktop power connectors for the OptiPlex DT form factor. These are proprietary to Dell and are not interchangeable with standard ATX power supplies.
The Dell part numbers associated with this power supply are F255E-01, D255P-00, and RM110.