Acer 17.3" Phenom II N970 2.2GHz Notebook | AS7551-7422 Acer Aspire One AS7551-7422 AMD Phenom II N970 17.3-inch Netbook General Features: Black color Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA and reinstallation partition 6-cell battery AMD Phenom II N970 2.2GHz Quad-Core processor Technologies, Execute Disable Bit AMD M880G chipset 4 GB DDR3 SDRAM (8 GB maximum) 500 GB hard drive DVD RW Drive ATI Mobility Radeon HD 4250 Graphics