Dell Optiplex PC - Intel C2D E7500 2.93GHz, New 4GB Memory, 160GB, DVD, Windows 10 Professional (Certified Refurbished) New 4GB Memory - 160GB SATA Hard Drive. Intel Core 2 Duo E7500 2.93GHz Processor. 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 USB Keyboard and Mouse Included. Windows 10 Professional