Dell Optiplex 980 Small Form Factor Desktop w/ Intel Core i5 650@3.20GHz, 4GB DDR3 RAM, 250GB HDD and licensed Windows 10 Professional (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 Dell Optiplex 980 Refurbished Desktop - Intel Core i5-650 Processor - 3.20GHz, 4GB DDR3 RAM, 250GB HDD,DVD ROM --- Operating System: Windows 7 Pro 64 Bit Comes with a free WIFI USB ADAPTER To Allow Wireless Internet Use The premier OptiPlex 980 Refurbished Desktop is Dell's most powerful and flexible desktop solution designed for best-in-class performance and collaboration, while enabling business-class control. It delivers premier technology that helps simplify systems management and security that blend seamlessly into office environments/ Home use Convenient onscreen access to your peripherals through the available plug-and-play