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
DELL Optiplex 990 Tower Computer PC, Intel Quad-Core i5, 1TB HDD, 16GB DDR3 RAM, Windows 10 Pro, DVW, WIFI, USB Keyboard and Mouse (Used - Like New)" - Walmart.com
Amazon.com: Dell OptiPlex 7010 USFF Computer Desktop PC, Intel i5 3.2GHz, 8GB Ram, 250GB Hard Drive, WiFi & Bluetooth, Wireless Keyboard and Mouse, 24 Inch FHD Monitor, Webcam, Windows 10 (Renewed) : Electronics