Dell 0PW124 - 275W Power Supply For OptiPlex 740, 745, 755
PS-5281-3DF Dell 280-Watts Power Supply for OptiPlex 755
Genuine Dell AC Power Adapter For Optiplex USFF 620 745 755 760 DA-2 No Cord | eBay
H275P-01 HP-L2767F3P 0MH300 275W Dell OptiPlex 755 - Power supply
PW124 0PW124 CN-0PW124 275W For Dell Optiplex 755 SFF Power Supply D275P-00 - 365PowerSupply.com - Replacement Laptop Power Adapters,Desktop Power Supply & Server Workstation PSU.
Refurbished: Dell 0Rm117 Dell 275 Watt Power Supply For Optiplex 755 - Newegg.com
H280P-01 - Dell 280-Watts Power Supply for 620/745/755 SD