Amazon.com: Dell Optiplex 780 Desktop Business Computer PC (Intel Dual Core Processor up to 3.0GHz, 8GB DDR3 Memory, 500GB HDD, DVD Burner, Windows 10 Professional) (Renewed) : Electronics
Dell OptiPlex 7010 Small Form Factor Upgrade Guide - Tachytelic.net
Amazon.com: Dell Optiplex 780 SFF Desktop PC - Intel Core 2 Duo 3.0GHz 4GB 160GB Windows Pro (64bit) (Renewed) : Electronics
How much can I upgrade my Dell Optiplex 780 SFF for gaming? - Quora
Refurbished Dell Optiplex 780 3 GHz Dual Core Core 2 Duo Tower 4GB 80GB Windows 7, (win 7)
Amazon.com: Dell Optiplex 780 Desktop Business Computer PC (Intel Dual Core Processor up to 3.0GHz, 8GB DDR3 Memory, 500GB HDD, DVD Burner, Windows 10 Professional) (Renewed) : Electronics
How to turn DELL OptiPlex 9010 Slim Desktop into Gaming PC - YouTube