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
OFFTEK 2GB Replacement Memory RAM Upgrade for Dell OptiPlex 780 (Ultra Small Form Factor) (DDR3-8500 - Non-ECC) Desktop Memory at Amazon.com
Dell Optiplex 780 - My First 64 Bit PC with 16GB DDR3 RAM! YAY! - YouTube