Dell OptiPlex 7020 Intel Core i5-4590 X4 3.3GHz 4GB 500GB DVD Win8.1, Black (Certified Refurbished) This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Intel Core i5-4590 3.3GHz; 500GB SATA; 4GB DDR3 Intel HD Graphics 4600 No Wireless; No Bluetooth Mini-tower; DVD Player; Microsoft Windows 8.1 Professional