HP Compaq Pro 6005 Small Form Factor High Performance Premium Business Desktop (AMD PHENOM II X3 3.0 GHz, 4GB DDR3 Memory, 250GB HDD, DVD, Windows 7 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 Processor: AMD PHENOM II X3 3.0 GHz 2MB Cache; Memory: 4GB DDR3; supports up to 16GB, 4 slots; Hard Drive: 250GB SATA 5400RPM Network: 10/100/1000 Gigabit Ethernet; Slim/Small form factor Business Desktops & WorkstationsSuperMulti LightScribe DVD Writer Drive, Comes with mouse and keyboard; Front Panel: (4) USB 2.0, (1) Headphone, (1) Microphone; Rear Panel: (1) DisplayPort, (1) VGA, (6) USB 2.0, (1) RJ-45 LAN, (1) Audio: Line-in/Microphone (1) Audio: Line-out, (1) Serial Port Windows 7 Professional 64-bit English (activation code sticker included on desktop case); Restore Partition on HDD with F11; designed for on-the-go working professionals.