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Dell 275W SFF power supply unit silver metal casing 24-pin 4-pin SATA connectors

DELL

DELL 275W Optiplex GX520 GX620 SFF Power Supply YD080

SKU CH-7KNM-AZ3NC

A 275 W Dell power supply for OptiPlex GX520 and GX620 SFF desktops with 24-pin ATX, 4-pin P4 and SATA connectors

  • Product weight1
  • Genuine Dell replacement ensures reliable power delivery
  • 275 W maximum output supports Optiplex GX520 and GX620 SFF systems
  • 24-pin ATX, 4-pin P4 and SATA connectors cover motherboard and drive power needs
  • New condition guarantees full rated performance from first use
  • Multiple Dell part numbers confirm wide compatibility across GX520 and GX620 SFF models

Genuine Dell 275W SFF Power Supply

This genuine Dell 275W power supply carries part number YD080 and is built for Optiplex GX520 and GX620 small-form-factor systems. It delivers up to 275 watts of maximum output and includes a 24-pin ATX connector, a 4-pin P4 connector and a single SATA connector. The unit is supplied new and matches Dell part numbers K8964, KH620, TD570, N8373 and YD358.

Direct replacements for Dell Optiplex SFF

It suits owners who need an exact replacement for a failed or noisy unit in a compatible Optiplex SFF chassis. Builders working with standard ATX cases, proprietary non-Dell small-form-factor layouts or systems that demand additional PCIe power connectors should look elsewhere.

Fits Dell Optiplex GX520 and GX620 SFF

Installation uses the existing mounting points and the three provided cables to power the motherboard, CPU and one SATA drive. The 275W rating supports the original platform components without requiring adapter cables or chassis modifications.

How it compares

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

Price $43.99
Cheaper than about 89% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameDELL

Questions about this item

Does the 24-pin ATX connector match the motherboard in my Optiplex GX520 or GX620 SFF?

Yes, the unit ships with a 24-pin ATX connector that plugs directly into the GX520 and GX620 small-form-factor boards.

Will the 4-pin P4 connector power an older Pentium 4 processor still installed in the chassis?

The included 4-pin P4 connector supplies the auxiliary CPU power required by Pentium 4 CPUs used in these models.

How can I confirm the 275W supply is delivering stable power once installed?

The system should boot without unexpected shutdowns and the SATA-connected drive must spin up and remain accessible under load.

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