Dell Optiplex 990 Desktop - 2nd Gen Intel Core i5 - 3.1 GHz (Certified Refurbished) This Certified Refurbished product is tested & 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 1 year warranty, and may arrive in a generic box. Only select sellers who maintain a high perfomance bar may offer Certified Refurbished products on Amazon.com 2nd Generation Intel Core i5-2400 4GB PC3-10600 Memory (Up to 16GB) 250GB 7200RPM SATA Hard Drive Supports Multiple Displays (Requires Display Port Adapter)