HP Z800 Workstation, Z. Processor family: Intel Xeon, Processor clock speed: 2.8 GHz, Processor model: X5660. Internal memory: 24 GB, Internal memory type: DDR3, Memory slots: 12x DIMM. Hard drive capacity: 300 GB, Hard drive interface: Serial Attached SCSI (SAS), Hard drive rotational speed: 15000 RPM. Optical drive type: DVD Super Multi. Audio system: HD Audio