HP 8000 USFF - Duo 2.66GHz, 4GB DDR3, 250GB HDD, Windows 7 Pro, WiFi (Certified Refurbishedd) This Certified Refurbish 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 Refurbish products on Amazon.com. 250GB Hard Disc Drive for ample storage of your digital media files! Model: HP 8000 Elite Ultra Slim Desktop - Intel Core 2 Duo 2.66GHz, 4GB DDR3 Memory - Ports: (10) USB 2.0 (4 Front, 6 Back), (2) PS/2, (1) RJ-45 (Ethernet), (1) Display Port, (1) VGA, (1) Headphone, (2) 3.5mm audio in/out jack. Software: Comes Pre-Installed with *NEW* Windows 7 Professional 64-Bit Operating System.