Lenovo D20, ThinkStation. Processor clock speed: 2400 MHz, Processor family: Intel Xeon, Processor model: E5645. Internal memory: 4096 MB, Internal memory type: DDR3, Memory slots: 12x DIMM. Hard drive capacity: 500 GB, Hard drive interface: Serial ATA II, Hard drive rotational speed: 7200 RPM. Graphic adapter: Quadro 2000, Maximum graphic adapter memory: 1024 MB, Graphics adapter family: NVIDIA. Optical drive type: DVD Super Multi DL