Dell OptiPlex GX620 Server H280P-00 280W Power Supply- U9087 – Buffalo Computer Parts
NH429 H280P-01 L280P-01 PS-5281-5DF-LF PSU for Dell Optiplex GX620 330/740/
N8373 0N8373 CN-0N8373 275W For Dell Optiplex GX620 SFF Power Supply N275P-00 - 365PowerSupply.com - Replacement Laptop Power Adapters,Desktop Power Supply & Server Workstation PSU.
Dell 220W Power Supply for Optiplex GX620 | Laptech The IT Store.