Dell Alimentatore desktop 250W APFC Lite-On (CVJ4W)

The Dell CVJ4W is a proprietary 250-watt desktop power supply built by Lite-On, engineered specifically for Dell OptiPlex desktop and small form factor systems. Unlike generic ATX units, it uses a Dell-specific motherboard connector and Active PFC to deliver stable, efficient power in business environments.

Highlights

• 250 W total output with Active Power Factor Correction (APFC)
• 80 PLUS Bronze efficiency rating
• Proprietary Dell form factor for OptiPlex 390, 790, 990, 3010, 7010, 9010 (Desktop/SFF)
• Manufactured by Lite-On, Dell part number CVJ4W
• Active fan cooling with OVP, OCP, and SCP protection

In daily use

This power supply is a direct replacement for failed or insufficient units in compatible Dell OptiPlex desktops. Its Active PFC ensures efficient power draw from the mains, reducing harmonic distortion and meeting modern energy standards. The 80 PLUS Bronze certification indicates at least 82% efficiency at typical loads, lowering operating costs and heat output.

Full specifications

• Power output: 250 W
• Form factor: Proprietary Desktop (DT) / Small Form Factor (SFF)
• Input voltage: 100-240 V AC
• Input frequency: 50/60 Hz
• PFC: Active
• Efficiency: 80 PLUS Bronze
• Main connector: 24-pin ATX (Dell proprietary)
• CPU connector: 4-pin ATX 12V
• SATA connectors: 2
• Slimline SATA connectors: 1
• Cooling: Active fan
• Protection: OVP, OCP, SCP

Final note

Verify compatibility with your exact OptiPlex model before ordering, as Dell uses several proprietary power supply designs across different chassis sizes.