Dell Optiplex 780 SFF Desktop Intel Core 2 Duo 3 GHZ 16GB RAM 320GB HDD No OS | eBay
Renewed Dell OptiPlex 780 SFF Desktop Intel Core 2 Duo CPU E7500 @ 2.93GHz With 90-day warranty
DELL OPTIPLEX 780 3.0GHz 500GB HDD 8GB RAM WIFI Enabled W/ Windows 10 Pro 64-bit | eBay
Dell Optiplex 780 SFF 500GB Windows XP Pro SP3 32Bit Desktop Computer PC 4GB RAM | eBay
Amazon.com: Dell Optiplex 780 SFF Desktop PC - Intel Core 2 Duo 3.0GHz 4GB 160GB Windows Pro (64bit) (Renewed) : Electronics
Dell OptiPlex 780 SFF Pentium E5800 3.2GHz + 4GB RAM (NO HDD NO OS)
4GB DDR3 Memory Upgrade for Dell Optiplex 780 DT/MT/SFF PC3-8500 240 pin 1066MHz Desktop RAM (PARTS-QUICK Brand) at Amazon.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