This power supply ONLY works for Dell Mini Tower System, DOES NOT work for Dell SFF Systems, DT Desktop System, USFF Ultra Small Form Factor Systems; Compatible Model: Dell Optiplex 3020 7020 9020 Mini Towers (MT/ Precision T1700/ PowerEdge T20 (MT Mini Tower); Dell Compatible Part Numbers: XFXKX, HYV3H, HCTRF, RVTHD, 7VK4S, NFX6T, P0KFV, KGF74, N0KPM, 776VT, P2W4R, WHN49, KPRG9, 4FGD7, 0PKFU, PS-3291-1DB, B290EM-01, WD-ZD291SGF, H290AM-00, D290A001L. Compatible Dell Model Numbers: D290EM-00, DPS-290EB A, L290EM-01, HK390-11FP, AC290AM-00, PCB045, AC290EM-00, PCB046, F290EM-00, AC290EM-01, PCB045, H290EM-00, D290E001L, HU290AM-00 D-0290ADU00-201, L290EM-00, PS-3291-1DA, L290AM-00, PS-3291-1DF
Note:This PSU only works for Dell Optiplex, Precision and PowerEdge Mini Tower (MT) systems, will not work for Small Form Factor (SFF)Series. Please check model number for compatibility before purchasing