Lenovo ThinkCentre M55, 1.8 GHz, Intel® Core™2 Duo, 1 GB, 250 GB, DVD-RW, Windows Vista Business Lenovo ThinkCentre M55. Processor frequency: 1.8 GHz, Processor family: Intel® Core™2 Duo, Processor model: E4300. Internal memory: 1 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 667 MHz. Total storage capacity: 250 GB, Optical drive type: DVD-RW. Discrete graphics card model: Intel® GMA 3000. Operating system installed: Windows Vista Business. Power supply: 310 W. Chassis type: Tower. Product type: PC. Weight: 12.5 kg. Product colour: Black http://compreviews.about.com/od/sff/gr/LenovoM55USFF.htm 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...