Dell PWR SPLY 265W MT APFC HIPRO Genuine Dell 265W Power Supply For The Optiplex 390, 790, 990 Small Mini Tower Systems 265W Max Power Fits Dell Optiplex 390, 790, and 990 Mini Tower Systems Connectors: P1 - 24-pin ATX Motherboard Power, P2 - 4-pin P4 motherboard power, P3 - 4-pin SATA standard power connector, P5 - 4-pin SATA standard power connector, P8 - 4-pin SATA standard power connector, P9 - 4-pin SATA standard power connector Dell Part Numbers : YC7TR, 9D9T1, GVY79, 053N4, D3D1C | | Dell Model Numbers : F265EM-00, AC265AM-00, L265EM-0, H265AM-00, L265AM-00