
Dell
Dell F255E-01 255W Power Supply Replacement - Optiplex
★★★★★
A direct-fit 255W replacement power supply for Dell OptiPlex 580, 760, 780, 960, and 980 desktops.
$58.02*
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✓ In Stock on Amazon.com
*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.
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Overview
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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View on Amazon →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
Which Dell OptiPlex models is this F255E-01 power supply compatible with?
It is compatible with the Dell OptiPlex 580, 760, 780, 960, and 980 desktop (DT) form factor models.
Is this power supply new or used?
This is a used unit. It has been pulled from a working system but does not come with additional cables, accessories, or software.
Does this power supply use standard ATX connectors?
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.
What is the Dell part number for this unit?
The Dell part numbers associated with this power supply are F255E-01, D255P-00, and RM110.