HP 3500 MT, Pro. Processor clock speed: 2.8 GHz, Processor family: Intel Pentium G, Processor model: G640. Internal memory: 2 GB, Maximum internal memory: 8 GB, Memory layout: 1 x 2 GB. Total storage capacity: 500 GB, Hard drive capacity: 500 GB, Hard drive rotational speed: 7200 RPM. On-board graphics adapter model: Intel HD Graphics. Audio system: HD