Amazon.com: HP Elite Desktop, Intel Core 2 Duo Processor, 8 GB RAM, 500 GB Hard Drive, DVD-ROM, Wi-Fi, Windows 10 Home, 19" LCD Monitor (Renewed) : Electronics
Acer Veriton X6630G VX6630G-i54570X Desktop Computer, Intel Core i5 4th Gen i5-4570 Quad-core (4 Core) 3.20 GHz, 8 GB RAM DDR3 SDRAM, 500 GB HDD, Small Form Factor, Black - Walmart.com
Crucial MX500 500GB M.2 SATA 6Gb SSD Bundle with Crucial 16GB (2 x 8GB) DDR4 PC4-21300 2666MHz Memory Kit Compatible with SFF and Tower Desktops at Amazon.com
Refurbished: Dell Optiplex 745 Mini Tower Pentium D Dual Core, 3.4 Ghz, 500 Gb Hard Drive, 4 Gb Ram, Windows 7 Home Premium Desktop Computers - Newegg.com