Dell Optiplex  - Intel Core 2 Duo 3.0GHz, 4GB, 250GB, DVDRW, Windows 7 Pro (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, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com Runs: Microsoft Windows 7 Professional Whats inside: Core2Duo 3.0GHz CPU, 4GB RAM, 250GB Hard Drive, DVDRW (burn and play both CDs and DVDs) Whats included: New Keyboard, New Mouse, New Power Cord Dell Optiple Mini-Tower computer featuring hard to get Windows 7 Professional