Dell OptiPlex 780 Intel Core2 Duo E8400 3.00 GHz 4GB RAM NO HDD | eBay
Dell Optiplex 780 - 2GB RAM Intel Core Duo E8400 @ 3GHz No HDD No OS | eBay
Restored Lenovo ThinkCentre M58P Tower Desktop PC with Intel Core 2 Duo E8400 Processor, 8GB Memory, 1TB Hard Drive and Windows 10 Pro (Monitor Not Included) (Refurbished) - Walmart.com
HP Compaq dc7900 Computer Intel Core Duo E8400 3Ghz, 1GB RAM, NO HDD, #51 | eBay
Refurbished: Dell Optiplex 780 Desktop - Intel Core 2 Duo E8400 3.0Ghz, 4GB DDR3 RAM, 250GB Hard Drive, DVD - Windows 7 Professional 64 Bit - Newegg.com