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New Dell 305 W ATX power supply unit, black metal enclosure with fan grille and cable bundle

DELL

DELL WU133 305 W Power Supply Optiplex 760 960 MT

SKU CH-9N8A-NBTBH

A 305 W ATX12V power supply for Dell Optiplex 760 and 960 MT systems

  • Max wattage305 W
  • Product typeATX 12 V
  • 305 W output powers OptiPlex 760 and 960 MT
  • ATX 12V design fits standard chassis
  • New condition ensures reliable operation
  • Part number WU133 matches Dell specification

Dell 305 W ATX power supply for OptiPlex MT

This genuine Dell WU133 unit delivers 305 watts of ATX 12 V power. It is built as a direct replacement for the original supply in OptiPlex 760 and 960 mini-tower chassis. The part suits IT teams maintaining legacy fleets or owners restoring a vintage workstation to working order. It is not for systems that require higher wattage or a different form factor.

Fits OptiPlex 760 and 960 mini-tower cases

The supply uses the standard ATX 12 V connector layout expected by those motherboards. It slots into the existing mounting points without adapters or cable rerouting. Installation restores reliable power delivery to the original CPU, memory and expansion cards. Builders needing extra headroom for modern graphics cards or additional drives should look elsewhere.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 93% of the 10,869 comparable items (median $142.99).
Max wattage 305 W
Lower than about 92% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameDELL
Product typeATX 12 V
Power
Max wattage305 W

Questions about this item

How much continuous power can the 305 W unit deliver to an Optiplex 760 or 960 MT?

The supply is rated for a maximum of 305 W, which is the sustained output limit for the Optiplex 760 and 960 MT systems it supports.

What noise or heat level should I expect when the PSU runs all day in an Optiplex 760 or 960 MT?

The ATX12V design uses a single internal fan that spins only as fast as needed to keep the 305 W unit within safe thermal limits during continuous operation.

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