Dell Optiplex Intel Core 2 Duo 2.6Ghz, New 4GB RAM, 500GB HDD, DVDRW, USB Wifi, Windows 7-(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. What is Inside: 500GB hard drive-New 4GB of Memory-Pro Tip: Hard drive size has nothing to do with the speed of the machine. Windows 7. New Power Cord.