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: McAfee SecurityCenter with anti-virus, anti-spyware, firewall, 30-Days; Microsoft® Works; Roxio Creator 10.2 Cyberlink PowerDVD DX.