DELL Desktop PC OptiPlex 3020 Intel Core i5 4th Gen 4590 (3.30 GHz) 8 GB DDR3 1 TB HDD Intel HD Graphics 4600 Windows 7 Professional 64-Bit with Windows 8.1 Pro License - Newegg.com
Amazon.com: Dell Optiplex 9010 Tower TW High Performance Business Desktop Computer, Intel Quad Core i5-3470 up to 3.6GHz, 8GB Memory, 2TB HDD, DVD, USB 3.0, WiFi, Windows 10 Professional (Renewed) : Electronics