HP Elite Business Desktop (Intel Quad-Core i5 up to 3.2 GHz Processor, 16GB DDR3 RAM, 1TB HDD, DVD, Windows 7 Professional) (Certified Refurbished) (500GB) 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 Intel Core i5-2400s 2.5GHz (Turbo up to 3.3GHz) 6MB Cache, Intel HD Graphics 2000, 16GB DDR3 RAM (4 slots), 1TB SATA 5400rpm Hard Drive; 10 x USB port, 1 x VGA, 1 x Display Port, Gigabit Ethernet, audio in, audio out, microphone jack; Expansion Bays: (1) External 5.25" Drive Bay; (1) Internal 3.5" Drive Bay; (1) External 3.5" Drive Bay Slim/Small form factor Business Desktops & Workstations, DVD ROM, Comes with mouse and keyboard; Windows 7 Professional 64-bit English (activation code sticker included on desktop case),