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Dell YD358 220 W internal power supply unit for OptiPlex GX520 SFF

DELL

DELL YD358 220 W power supply for OptiPlex GX520 SFF

SKU CH-2Q8J-B79Y1

A 220 W ATX12V internal power supply compatible with Dell OptiPlex GX520 and GX620 small-form-factor desktops

  • TypeATX 12V
  • Maximum Power220 W
  • Input Voltage110 V AC 220 V AC
  • Delivers 220 W to run the OptiPlex GX520 SFF
  • ATX12V design fits the OptiPlex GX620 as well
  • Dual 110 V AC and 220 V AC input works worldwide
  • New unit replaces a failed supply without modification
  • Internal form factor installs directly in the chassis

Direct replacement for OptiPlex GX520 SFF

This 220 W ATX12V power supply is built for Dell OptiPlex GX520 and GX620 small-form-factor desktops. It restores factory power delivery when the original unit fails or shows instability. The part matches the YD358 specification used in those systems.

Internal ATX12V form factor with dual-voltage input

The supply fits the proprietary SFF chassis and connects to the motherboard with the standard ATX12V pinout. Its 110 V AC and 220 V AC input range lets the same unit operate worldwide without a voltage switch. No extra cables or adapters are required for installation.

Replaces a failed or ageing 220 W unit in GX520

The swap is worth it when the original supply causes random shutdowns, voltage warnings or no-post symptoms. It is not for builders needing higher wattage for discrete graphics or for systems outside the OptiPlex GX520 and GX620 SFF line.

Highlights

  • Delivers 220 W to run the OptiPlex GX520 SFF
  • ATX12V design fits the OptiPlex GX620 as well
  • Dual 110 V AC and 220 V AC input works worldwide
  • New unit replaces a failed supply without modification
  • Internal form factor installs directly in the chassis

Specifications

BrandDELL
TypeATX 12V
Maximum Power220 W
Input Voltage110 V AC 220 V AC

Questions about this item

What ATX12V standard does the YD358 follow, and what maximum output does that allow?

The unit is an ATX12V design rated for 220 W maximum output, which is the practical cap for the OptiPlex GX520 and GX620 small-form-factor chassis.

What physical form factor must the case accept for this supply to fit?

It uses an internal small-form-factor form factor built for the OptiPlex GX520 and GX620 SFF cases; the mounting holes and bracket match those models exactly.

How is the YD358 installed, and which step is most often missed?

Remove the old supply, slide the new unit into the SFF bay, secure the retention screws, then connect the 20-pin main and 4-pin CPU power cables; the step most often missed is fully seating the 4-pin CPU connector until it clicks.

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