Refurbished: Dell OptiPlex 790 Small Form Factor with Core i3-2120 3.3GHz Dual Core Processor, 8GB Memory, 500GB Hard Drive, and Windows 7 Professional - Newegg.com
Amazon.com: Dell Optiplex 790 SFF Desktop - Intel Core i7 3.4GHz, 16GB DDR3, New 500GB SSD, Windows 10 Pro 64-Bit, WiFi, DVDRW (Renewed) : Electronics
Amazon.com: DELL Optiplex 790 SFF Small Form Factor Business Desktop Computer PC (Intel Dual Core i3 CPU 3.3GHz, 4GB DDR3 Memory, 500GB HDD, DVDRW, Windows 10 Professional) (Renewed)'] : Electronics
Dell 790 SFF HD7750 CrossFireX by 2112 - Intel Core i7-2600, 2 x Radeon HD 7750 - PCPartPicker
Dell Optiplex 790 SFF Intel Core i5-2320 3.0GHz CPU 4GB RAM No HDD No
Refurbished: Dell OptiPlex 790 Small Form Factor with Core i3-2120 3.3GHz Dual Core Processor, 8GB Memory, 500GB Hard Drive, and Windows 7 Professional - Newegg.com