Fujitsu Esprimo P9900 E-Star 5.0, ESPRIMO. Processor clock speed: 3.33 GHz, Processor family: Intel Core i5, Processor model: i5-660. Internal memory: 4 GB, Maximum internal memory: 16 GB, Memory layout: 2 x 2 GB. Total storage capacity: 500 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA II. Discrete graphics adapter model: GMA HD, Maximum graphics adapter memory: 1759 MB. Audio system: HD, Audio output channels: 5.1