Back Pack 16.4 Pc & 17 Mb- Mid Box Contents - Lenovo ThinkPad T510 4314-DEU, 6-cell Li-on Battery Pack (up to 6.1 hours), AC Adapter; Software Bundle - Windows 7 Professional 64, Microsoft Office 2010 preloaded (purchase product key to activate), Norton Internet Security 2011 30-days Trial, 3-Year Limited Warranty Intel Core i5-560M 2.66GHz Dual-core Processor with Turbo Boost Technology up to 3.20GHz 3MB Smart Cache 2GB PC3-8500 1066MHz DDR3 RAM (8GB max) 320GB (7200RPM) Hard Drive