Amazon.com: Dell OptiPlex 390-SFF, Core i5-2400 3.1GHz, 8GB RAM, 240GB Solid State Drive, DVDRW, Windows 10 Pro 64bit, (Renewed) : Electronics
Amazon.com: Dell Optiplex 390 Business High Performance SFF Desktop Computer PC (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3, 1TB HDD, HDMI, DVD, Windows 10 Pro 64-bit) (Renewed) : Electronics
Dell OptiPlex 390 Desktop Computer PC, 3.20 GHz Intel i5 Quad Core Gen 2, 4GB DDR3 RAM, 500GB SATA Hard Drive, Windows 10 Home 64 bit (Used Grade B Used) - Walmart.com