Lenovo ThinkCentre M58 Business Desktop Computer with Intel Core 2 Duo 3.0GHz Processor, 4GB RAM, 320GB HDD, DVD, Gigabit Ethernet, VGA, Windows 10 Home (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. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com Lenovo M58 Core 2 Duo 3.0 GHz Processor What's Inside: 4GB RAM, 320GB Hard Drive, DVD Optical Drive, Operating System: Windows 10 Home