Dell OptiPlex /Core 2 Duo E7400 @ 2.80 GHz/NEW 8GB DDR2 / 1TB HDD/DVD-RW/WINDOWS 7 PRO 64 BIT-(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 64bit, NEW 8GB DDR2.New Power Cord