Dell Optiplex 990 Desktop Computer PC, 3.20 GHz Intel i5 Quad Core Gen 2, 8GB DDR3 RAM, 250GB SATA Hard Drive, Windows 10 Professional 64bit (Renewed) | Entrepreneur
Dell Optiplex 990 i5 Quad Core 8GB 500GB Windows 10 Tower Grade B
Fast Dell Optiplex 990 USFF Desktop Core i5 4GB 250GB Win10 Home WiFi W/17" LCD
Dell OptiPlex 990 Desktop PC, 3.2 GHz Intel i5 Quad Core Gen 2, 8GB DDR3 RAM, 500GB SATA HD, Windows 10 Professional 64 Bit (Refurbished Grade B) | MacHeist
Refurbished: Dell Optiplex 990 Tower Desktop Computer Intel Core i5 2400 8GB 256GB SSD DVD Windows 10 Home New Free Keyboard, Mouse,Power cord,WiFi Adapter - Newegg.com
Dell Optiplex 990 Desktop Computer PC, 3.20 GHz Intel i5 Quad Core Gen 2, 4GB DDR3 RAM, 250GB SATA Hard Drive, Windows 10 Professional 64bit (Renewed) | Popular Science
Dell Optiplex 990 SFF Desktop CPU Tower - Intel i5-2500 @ 3.2 GHz|4GB – Upcycle Tech Foundation