1Pcs USED DELL Optiplex 3020 7020 9020MT Desktop Computer Power Supply L290AM-00 | eBay
V9MVK Dell 255-Watts Non Hot Plug Power Supply for OptiPlex 3020/9020/ Precision T1700
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Dell OptiPlex 3020 Desktop L290AM-00 290W Switching Power Supply- KPRG – Buffalo Computer Parts
D255AS-00 Dell 255-Watts Power Supply for Dell OptiPlex 3020 / 9020 /
R7PPW - 255W For Dell Optiplex 3020 / 9020 SFF Small Form Factor Power Supply - 365PowerSupply.com - Replacement Laptop Power Adapters,Desktop Power Supply & Server Workstation PSU.