Dell OptiPlex/Intel Core 2 Duo E8500 3.1GHz/NEW 4Gb RAM/160 Gb/DVD-RW/WINDOWS 7 PRO x64-(Certified Reconditioned) This certified reconditioned product is tested and certified by the manufacturer or by a third-party seller to look and work like new, with some signs of wear. The reconditioning process includes functionality testing, inspection and repackaging! Windows 7 Professional x64. NEW 4Gb RAM. New Power Cord. Package does not include monitor or keyboard/mouse.