Lenovo C20, ThinkStation. Processor clock speed: 2530 MHz, Processor family: Intel Xeon Quad-Core, Processor model: E5649. Internal memory: 6144 MB, Internal memory type: DDR3, Memory slots: 6x DIMM. Hard drive capacity: 1000 GB, Hard drive interface: Serial ATA, Hard drive rotational speed: 7200 RPM. Optical drive type: DVD-RW. Audio system: HD