Dell K345R 305W Optiplex 980 MT Power Supply (Renewed)

Name: Dell K345R 305W Optiplex 980 MT Power Supply (Renewed)
Brand: Dell
SKU: K345R

Overview

The Dell K345R is a 305-watt OEM power supply unit engineered specifically for the Dell OptiPlex 980 Mini Tower desktop. It delivers the same wattage and uses the same proprietary connector layout as the original factory-installed PSU, making it a direct drop-in replacement. The unit includes a 24-pin mini ATX motherboard connector, SATA power connectors for storage drives, and a 4-pin floppy power connector, covering all the internal power needs of the OptiPlex 980 MT chassis.

This particular unit is professionally renewed, meaning it has been inspected, tested, and verified to meet Dell's operational specifications before being resold. For users whose original power supply has failed or is showing signs of instability—random shutdowns, failure to boot, or audible coil whine—the K345R provides a straightforward repair path without the risk of aftermarket compatibility issues. It is worth noting that this PSU uses Dell's proprietary form factor and pinout, so it cannot be used in standard ATX cases or non-Dell systems.

Key Features

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PN(s): K345R K346R M177R J775R

Fits: Optiplex 980

Genuine OEM Replacement Part

Power Supply Switching Unit Brick PSU

Specifications

Brand

Dell

Model

K345R

Wattage

305W

Compatibility

Dell OptiPlex 980 Tower MT

Connectors

24-Pin Mini ATX, 4-Pin Floppy, SATA

Condition

Renewed (Refurbished)

Type

Genuine Dell OEM

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Pros & Cons

👍 Pros

Genuine Dell OEM part ensures proper fit and electrical compatibility with the OptiPlex 980 MT
305W output matches the original factory specification for stable performance
Professionally renewed and tested, offering a lower-cost alternative to new units
Includes 24-pin mini ATX, SATA, and 4-pin floppy connectors for full internal power needs

👎 Cons

Only compatible with the Dell OptiPlex 980 Mini Tower—not usable in other systems or form factors
Renewed unit may have a shorter lifespan compared to a brand-new power supply
305W rating leaves limited headroom for adding power-hungry expansion cards
Proprietary Dell connector layout prevents use as a standard ATX replacement

Frequently Asked Questions

Which Dell systems is the K345R power supply compatible with?

It is designed specifically for the Dell OptiPlex 980 Mini Tower (MT) form factor. It will not fit the Small Form Factor (SFF) or Desktop (DT) versions.

What connectors does this power supply include?

It provides a 24-pin mini ATX connector, a 4-pin floppy connector, and SATA power connectors for drives.

Is this a new or refurbished unit?

It is a professionally renewed (refurbished) genuine Dell OEM part, tested for reliable performance before sale.

What is the wattage rating of this power supply?

It is rated at 305 watts, matching the original factory specification for the OptiPlex 980 Tower.

Will this power supply fit a standard ATX case?

No, it uses Dell's proprietary form factor and pinout designed for the OptiPlex 980 MT chassis and is not interchangeable with standard ATX power supplies.