Power Supply Unit DELL MK9GY 305W Silver

The DELL MK9GY 305W Silver power supply unit is a 305-watt internal PSU designed for select Dell OptiPlex desktops. It provides direct replacement power delivery for compatible systems such as the OptiPlex 580 DT, 760 DT, and 780 DT. The unit’s silver finish matches OEM styling and the non-modular design supplies the necessary connections for standard desktop configurations.

Advantages

This power supply offers a factory-compatible form factor and rated 305W output for stable system operation. Being a direct-replacement part for supported OptiPlex models simplifies installation and ensures physical and electrical compatibility when the correct Service Tag or system configuration is confirmed. The product is refurbished and covered by a 90-day warranty.

Suitable for

• OptiPlex 580 DT
• OptiPlex 760 DT
• OptiPlex 780 DT

Key specifications

• Model: DELL MK9GY
• Power: 305W
• Color: Silver
• Type: Internal non-modular power supply
• Compatibility: OptiPlex 580 DT / 760 DT / 780 DT
• Manufacturer part number (MPN): MK9GY
• EAN: 5711045028021
• Condition: Refurbished (90-day warranty)

How to use

Confirm your PC model or use the system’s Service Tag or System Drill Down to verify compatibility before purchasing. Power down the computer, disconnect all cables and follow the service manual or manufacturer’s instructions to remove the existing power supply. Install the MK9GY unit in the chassis, secure it with the original mounting hardware or the kit components if supplied, reconnect power and internal cables to the motherboard and drives, then power on to verify operation.

Usage recommendations

Use the Service Tag lookup or System Drill Down to ensure electrical and physical compatibility. If the product is not sold as a complete kit, check for any component parts required for installation. Because this unit is refurbished, retain proof of purchase for the 90-day warranty.