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Metal server power supply unit with fan grille and power connector visible

Supersuperuncle

Supersuperuncle server power supply 305W for Dell 755 745 MT M8805 L305P-01 PS-6311-5DF-LF NH493

SKU CH-DK21-Z3N72

Replacement 305 W power supply for Dell 755 and 745 MT systems

  • 305W output powers Dell 755 and 745 MT systems
  • Replaces M8805 L305P-01 PS-6311-5DF-LF NH493 units directly
  • Brand-new condition ensures reliable server operation
  • Compatible with part numbers 8805 6311 493 755 745

Compatible Dell MT power supply

This 305 W unit replaces the M8805 L305P-01 PS-6311-5DF-LF NH493 in Dell 755 and 745 MT chassis. It fits the original mounting points and connector layout for direct installation.

Practical limits of proprietary Dell MT design

The supply uses Dell-specific pin-outs and mechanical keying, so it cannot power standard ATX motherboards or third-party cases. Builders needing generic ATX compatibility or higher wattage must choose a different form factor.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $116.99
Cheaper than about 61% of the 3,798 comparable items (median $131.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Which Dell models does this 305W power supply fit?

It is built for Dell OptiPlex 745 and 755 mini-tower chassis and matches part numbers M8805, L305P-01, PS-6311-5DF-LF and NH493.

What does the 305W rating mean once the unit is installed in one of those machines?

The 305W figure is the maximum continuous power the supply can deliver to the motherboard, drives and expansion cards in a 745 or 755 MT system.

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