Dell OptiPlex Pentium D 3400 MHz, 500Gig Serial ATA HDD, New 4096mb Memory, DVD/CDRW, Genuine Windows 7-(Certified Reconditioned) Genuine Windows 7 Professional. New Power Cord. 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.