Dell 250W alimentatore per Optiplex 390 790 990 3010 7010 9010

This Dell 250W power supply is the direct replacement for Optiplex 390, 790, 990, 3010, 7010, and 9010 desktops, mini-towers, and small form factor systems. Unlike generic ATX units, it uses Dell's proprietary form factor and connector layout, ensuring a drop-in fit without adapter cables or case modifications. The Delta-built design (part number 76VCK) delivers stable output with 80 PLUS Bronze efficiency, keeping energy waste and fan noise low in office environments.

Highlights

• 250W total output with 18A on +12V rail
• Proprietary Dell form factor for Optiplex 390/790/990/3010/7010/9010
• 80 PLUS Bronze efficiency
• 24-pin ATX main connector and 4-pin CPU connector
• Three SATA and one Molex peripheral connector
• Single 80mm cooling fan
• Over voltage, under voltage, over power, and short circuit protection
• Compatible with Dell part numbers H250AD-00, L250PS-00, D250AD-00, D250ED-00, AC250AD-00, F250ED-00

In daily use

The power supply runs quietly under typical office loads, with the 80mm fan ramping only when needed. Its high efficiency reduces heat output, which helps prolong the life of other components in compact Optiplex chassis. The fixed cable set is tailored to Dell motherboards, so installation is straightforward: remove the old unit, align the mounting holes, and reconnect the 24-pin and 4-pin plugs.

Full specifications

• Total power: 250 W
• AC input voltage: 100-240 V
• AC input frequency: 50/60 Hz
• Efficiency rating: 80 PLUS Bronze
• Main connector: 24-pin ATX
• CPU connector: 4-pin ATX 12V
• SATA connectors: 3
• Peripheral (Molex) connectors: 1
• Cooling: single 80mm fan
• Protection: OVP, UVP, OPP, SCP
• +12V output current: 18 A
• +5V output current: 15 A
• +3.3V output current: 10 A
• Compatible Dell part numbers: H250AD-00, L250PS-00, D250AD-00, D250ED-00, AC250AD-00, F250ED-00

Final note

Verify your Optiplex model and current power supply part number before ordering. This unit is not compatible with standard ATX cases or non-Dell motherboards.