Lenovo ThinkCentre M58P - Intel Dual Core 3.0GHz, 4GB DDR3, 320GB Hard Drive, Windows 7 Pro 64-Bit, WiFi (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. 320GB Hard Disc Drive installed for All your Digital Media Files! Model: Lenovo ThinkCentre M58P Desktop - Intel Core 2 Duo 3.0GHz, 4GB DDR3 Memory - Ports: (1) Display Port, (1) VGA, (8) USB 2.0 (2 Front, 6 Back), (1) eSATA, (1) Ethernet, (1) Audio-in/out, (1) Microphone, (1) Headphone. Software: Comes Pre-Installed with *NEW* Windows 7 Professional 64-Bit Operating System. What's in the Box? Professionally Refurbished Lenovo M58P ThinkCentre, New Power Cable, New ReCircuit USB Keyboard, Mouse & Mousepad!