Dell 780 USFF Desktop Computer PC C2D 2.93GHz 120GB SSD Win10 Professional with Keyboard, Mouse and Wifi with 2 Year Warranty!
Restored Dell Optiplex 780 Windows 10 Home Premium Desktop PC Tower Core 2 Duo 3.0GHz Processor 8GB RAM 500GB Hard Drive DVD-RW Wifi with a 19" LCD- Computer (Refurbished) - Walmart.com
Dell Optiplex 780 Desktop RAM upgrade - YouTube
CMS 4GB (2X2GB) DDR3 10600 1333MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 780 Dt/Mt/Sff Desktops - A81 at Amazon.com