Amazon.com: 2018 DELL OPTIPLEX 390 SFF Desktop Computer, Intel Core I3 2100 3.1GHz, 8GB DDR3, 120GB SSD, DVD, WIFI, HDMI, VGA, Bluetooth 4.0, Windows 10 Professional 64 Bit (Renewed) : Electronics
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Amazon.com: 250W L250NS-00 H250AD-00 F250AD-00 Power Supply Unit PSU for DELL Optiplex 390 790 990 3010 DT Inspiron 530s 537s 540s 545s 546s 560s 570s 580s Vostro 200s 220s 230s 400s Studio
Amazon.com: Dell Optiplex 390 Business High Performance SFF Desktop Computer PC (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3, 1TB HDD, HDMI, DVD, Windows 10 Pro 64-bit) (Renewed) : Electronics