The Inspiron 400 is a low cost, ultra small form factor desktop that packs a punch. Using AMD processor technology, it has the ability to perform with ease for everyday use. Dell USB keyboard and optical mouse included. Included software: Mc - Center with anti-virus, anti-spyware, firewall, 30-Days; Microsoft?? Works; Roxio Creator 10.2 Cyberlink Power - AMD Athlon Processor 2850e (1.8 GHz, 512 KB total cache). 3GB Memory (800 MHz DDR2 SODIMM); 320GB Hard Drive; 8X DVD+/-RW Disk Drive. Integrated Ethernet; Integrated 2.1 Channel HD Audio; 4 USB ports; 2 e - SATA ports; Connectors: headphone, mic, line-out, VGA, HDMI,. Wi-Fi includedwith 802.11 b/g card; 4-in-1 media card reader;. Genuine Windows 7 Home Premium