HP Pavilion Slimline s5620f Desktop PC - Black (Discontinued by Manufacturer) Intel Pentium E5500 Processor (2.80GHz, 2MB Cache, 800MHz Front Side Bus); 3GB PC3-10600 DDR3 SDRAM memory (1x1GB and 1x 2GB) (expandable to 4GB); 640GB (7200 RPM) Serial ATA hard drive; Genuine Windows 7 Home Premium 64-bit Intel GMA X4500 integrated graphics; SuperMulti DVD Burner with LightScribe Technology; Integrated audio, 6 speaker configurable with up to 5.1 surround sound capabilities External Ports: Front panel 6-in-1 memory card reader, Headphone, 2 USB 2.0 ports (Front), 4 USB 2.0 ports (Back), VGA-out (Back), Microphone/ Line-in/ Line-out (Back), LAN (Back) 10/100Base-T network interface HP USB keyboard and optical mouse