Amazon.com: BINGKERS 240W H240AS-00 Power Supply Fit for Dell OptiPlex 390 790 960 990 3010 7010 9010 Small Form Factor SFF System Desktop Computer 3WN11, L240AS-01 : Electronics
Amazon.com: 240W Watt Desktop Power Supply Unit PSU for Dell Optiplex 390 790 990 960 7010 9010 3010 Small Form Factor System SFF H240AS-00 H240AS-01 D240ES-00 DPS-240WB AC240AS-00 H240ES-00 L240AS-00 AC240ES-00 : Electronics
Dell Optiplex 390 790 990 3010 7010 9010 Small Form Factor SFF Computer Power Supply 240W - Walmart.com