Dell Optiplex 9020 Small Form Factor Desktop i5 i5-4570 Quad-Core 8gb RAM 500gb Hard Drive DVD +/- RW Drive Windows 7 Professional Intel Core 4th Generation i5-4570 Processor (Quad Core, 3.20GHz, 6MB) 8 GB Dual Channel DDR3 at 1600MHz (2x 4GB) Non-ECC, 500 GB SATA Hard Drive (7200 RPM) 8X DVD +/- RW Drive Windows 7 Professional 64 bit 3 years Dell Warranty