Dell OptiPlex Core 2 Duo E6400 2.1GHz - New 2GB - 80GB DVD Windows 7 Pro-(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! New 2 GB DDR2 RAM - 80 GB SATA Hard drive - DVD-ROM SATA drive. Windows 7 Pro Dell OptiPlex Core 2 Duo E6400 2.13 GHz.