Lenovo ThinkCentre M55, 1.6 GHz, Intel® Pentium® Dual-Core, 1 GB, 160 GB, DVD±RW, Windows XP Professional Lenovo ThinkCentre M55. Processor frequency: 1.6 GHz, Processor family: Intel® Pentium® Dual-Core. Internal memory: 1 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 160 GB, Optical drive type: DVD±RW. Discrete graphics card model: Intel® GMA 3000. Operating system installed: Windows XP Professional. Power supply: 225 W. Product type: PC. Weight: 6.4 kg Lenovo ThinkCentre M55 Ultra Small Form Factor2/26/07 – With Ultra Small Form Factor in the name of the Think Centre M55, one would think that it was an incredibly small system. Mini PCs from the likes of Apple, Shuttle and WinBook are all very smal...