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Dell T553C 305W power supply unit, metal casing, rear fan grille, side label, power cord socket

DELL

Dell T553C 305W Power Supply for Optiplex 330 740 745 755

SKU CH-N9Q7-AMMZ4

Genuine Dell 305W power supply for Optiplex 330, 740, 745 and 755 small mini-tower systems

  • Genuine Dell unit ensures reliable system power
  • 305 W output supports Optiplex small mini-tower workloads
  • Compatible with Optiplex 330, 740, 745 and 755 models
  • Multiple part numbers GK929, P670F, HK595 simplify ordering
  • New condition guarantees full rated performance

Dell 305W Power Supply for Optiplex Systems

This genuine Dell T553C unit delivers 305W output for Optiplex 330, 740, 740e, 740 MLK, 745, 745e and 755 small mini-tower computers. It replaces part numbers GK929, P670F, HK595 and model variants F305E-00, N305E-00, H305E-00. The supply is new and sourced as a Dell-IMSourcing DS component.

Who this fits and who it does not

It suits owners of the listed Optiplex models needing a direct-replacement 305W PSU. It will not fit full-size tower, small-form-factor or micro variants of those families, nor any Optiplex generation outside the 330, 740, 745 and 755 lines. Buyers who want higher wattage or a different form factor should look at something else.

Checks before ordering

Confirm the chassis is a small mini-tower version of Optiplex 330, 740, 740e, 740 MLK, 745, 745e or 755. Verify the existing PSU carries one of the part numbers GK929, P670F, HK595 or model codes F305E-00, N305E-00, H305E-00. Ensure the 305W rating meets the installed hardware load.

How it compares

Measured against everything we stock in Miscellaneous PC Accessories, at today’s prices. Recalculated every night.

Price $89.99
Pricier than about 72% of the 454 comparable items (median $40.99).

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Specifications

Product
Brand nameDell-IMSourcing DS

Questions about this item

Which Dell OptiPlex models does the T553C 305W PSU fit?

This unit is built for the OptiPlex 330, 740, 740e, 740 MLK, 745, 745e and 755 small mini-tower chassis.

Will the T553C 305W PSU work in an older OptiPlex 740 I want to keep running?

Yes — the T553C is listed as a direct replacement for the 740, 740e and 740 MLK, so it will power that system without modification.

How can I confirm the T553C 305W PSU is operating correctly after I install it?

Switch the PC on; the PSU fan should start, the front power LED should light steadily, and the system should boot to the BIOS without unexpected shutdowns.

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