Lenovo ThinkStation C20X, 2.4 GHz, Intel® Xeon® 5000 Sequence, E5620, 4 GB, DDR3-SDRAM Lenovo ThinkStation C20X. Processor frequency: 2.4 GHz, Processor family: Intel® Xeon® 5000 Sequence, Processor model: E5620. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Power supply: 800 W. Chassis type: Tower. Product type: Workstation. Product colour: Black