Amazon.com: Dell OptiPlex 780 USFF Desktop Intel Core 2 Duo 3.0 GHz 4 GB RAM 250 GB HD DVD Win Pro 32-Bit (Renewed) : Electronics
Dell Optiplex 780 Windows 10 Pro Desktop PC Tower Core 2 Duo 3.0GHz Processor 8GB RAM 500GB Hard Drive DVD-RW Wifi with a 22" LCD-Used Computer - Walmart.com
CMS 32GB (4X8GB) DDR3 12800 1600MHz Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 790 Mt/Dt/Sff Desktops - C7 at Amazon.com
Restored Dell OptiPlex 780 Business Desktop, Intel Core 2 Duo 8GB 1TB Dual 22" LCD Monitor DVD-RW Wi-Fi VGA USB - Desktops Windows 10 Pro (Refurbished) - Walmart.com
A-Tech 4GB (2X 2GB) Max Memory RAM Kit for Dell Optiplex 320, 210L, 210LN, (Minitower, Desktop) - DDR2 533MHz PC2-4200 Non-ECC DIMM Modules at Amazon.com
Restored Dell Desktop Computer OptiPlex Tower Core i3 Processor 8 GB Memory 250 GB Hard Drive DVD Wi-fi with a 19" LCD Monitor - PC Windows 10 (Refurbished) - Walmart.com
Restored Dell Optiplex 780 Small Form Factor Desktop PC with Intel Core 2 Duo Processor, 8GB Memory, 1TB Hard Drive and Windows 10 Pro (Monitor Not Included) (Refurbished) - Walmart.com
Dell OptiPlex - Wikipedia
CMS 8GB (2X4GB) DDR3 10600 1333MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 780 Dt/Mt/Sff Desktops - A69 at Amazon.com
CMS 8GB (2X4GB) DDR3 10600 1333MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 780 Dt/Mt/Sff Desktops - A69 at Amazon.com