Genuine Dell 240W Power Supply Unit (PSU), model 3WN11 / H240AS-00. This OEM part is designed for Optiplex 790 and 990 Small Form Factor (SFF) systems.
Input: 100-240V ~ Output: 240W Max
Compatible with part numbers: RV1C4, J50TW, 2TXYM, 3WN11, 709MT, 592JG, 66VFV.
Also compatible with model numbers: AC240AS-00, L240AS-00, AC240ES-00, H240AS-00, H240ES-00, D240ES-00, DPS-240WB.
Features essential connectors: 24-pin ATX, 4-pin ATX, two SATA power, and a 2-pin slimline SATA.
Dell AC240AS-00
A compact 13 x 6 x 4 inch adapter, weighing just 8.8 ounces.
First available in May 2013.