This is a, Genuine Dell 265W Watt 053N4 D3D1C 9D9T1 Optiplex 390, 790, 990 SMT Small Mini Tower Power Supply Unit PSU
Compatible Part Numbers: YC7TR, 9D9T1, GVY79, 053N4, D3D1C, Dell
Model Numbers: F265EM-00, AC265AM-00, L265EM-0, H265AM-00, L265AM-00
Features/Specifications: 265W Max Power Dell
Part Numbers: YC7TR, 9D9T1, GVY79, 053N4, D3D1C Dell
Model Numbers: F265EM-00, AC265AM-00, L265EM-0, H265AM-00, L265AM-00 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