This is a, Genuine Dell 240W Watt 3WN11 H240AS-00 2TXYM 709MT Power Supply Unit PSU For Optiplex 790 and 990 Small Form Factor SFF Systems Compatible Part Numbers: RV1C4, J50TW, 2TXYM, 3WN11, 709MT, 592JG, 66VFV Compatible Model Numbers: AC240AS-00, L240AS-00, AC240ES-00, H240AS-00, H240ES-00, D240ES-00, DPS-240WB

Features/Specifications:
Genuine Dell 240W Power Supply
Input: 100-240V
Output: 240w Max
Compatible Systems
Optiplex 790 Small Form Factor (SFF)
Optiplex 990 Small Form Factor (SFF)
Compatible Part Numbers: RV1C4, J50TW, 2TXYM, 3WN11, 709MT, 592JG, 66VFV
Compatible Model Numbers: AC240AS-00, L240AS-00, AC240ES-00, H240AS-00, H240ES-00, D240ES-00, DPS-240WB,
Connectors:
P1 - 24-Pin ATX Power
P2 - 4-Pin ATX Power
P3 - SATA Power
P4 - SATA Power
P5 - 2-pin Slim Line SATA