Dell 7.4 mm barrel 130 W AC Adapter with 2meter Power Cord United States | Dell USA
Amazon.com: AC255ES-00 PCB050 255W Power Supply Compatible with Dell Optiplex 3020 7020 9020 Precision T1700 Small Form Factor SFF Systems : Electronics
9K04T Dell | Used & Refurbished
Dell Optiplex 3020 Power Supply Unit PSU 290w 0KPRG9 for sale online | eBay