Lenovo M58p Small Form Factor, ThinkCentre. Processor frequency: 3 GHz, Processor family: Intel Core 2 Duo, Processor model: E8400. Internal memory: 2 GB, Internal memory type: DDR3-SDRAM, Maximum internal memory: 8 GB. Total storage capacity: 160 GB, Hard drive capacity: 160 GB, Hard drive interface: Serial ATA II. Discrete graphics adapter model: Intel GMA 4500M. Operating system installed: Windows Vista Business