Dell 3.0 GHz Intel Core 2 Duo Processor - New 4GB Memory - 320GB SATA Hard Drive - DVDRW - Windows 7 Professional 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! Dell Optiplex - Fast and Powerful 3.0 GHz Intel Core 2 Duo Processor - New 4GB Memory - 320GB SATA Hard Drive - DVDRW - Windows 7 Professional x64. This product will be installed with Windows 7 - New Power Cord.