HP Pro 3400 Microtower PC. Processor family: Intel Core i3, Processor model: i3-2120, Processor socket: Socket 1155. Internal memory: 2 GB, Memory slots: 2x DIMM, Internal memory type: DDR3-SDRAM. Total storage capacity: 500 GB, Hard drive capacity: 500 GB, Hard drive rotational speed: 7200 RPM. On-board graphics adapter model: Intel HD Graphics 2000. Audio system direct sound: Realtek ALC656