Dell Optiplex New Wifi - Intel Core 2 Duo @ 3.1ghz - New 4gb RAM - 250gb HDD - Windows 7 Professional 64-bit - Dvd-rw -(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 Pro Installed. Intel E8500 3.1GHz Processor. New 4GB RAM. 250GB Hard Drive. DVD-RW Drive. New Wifi Adapter.