Intel® Pentium® Intel Pentium Lenovo ThinkCentre M57e, 2.2 GHz, Intel® Pentium®, 2 GB, 160 GB, DVD±RW, Windows XP Professional Lenovo ThinkCentre M57e. Processor frequency: 2.2 GHz, Processor family: Intel® Pentium®, Processor model: E2200. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 160 GB, Optical drive type: DVD±RW. Discrete graphics card model: Intel® GMA 3100. Operating system installed: Windows XP Professional. Chassis type: Desktop. Product type: PC. Weight: 7.3 kg. Product colour: Black