Toshiba Portege PT343U-1ME096 13.3" Windows Notebook 4 GB RAM, 500 GB HDD, Intel HD Graphics 4600, Black Operating System: Win 8.1 Pro 64-bit / Win 7 Pro (32/64 bits) downgrade Processor: Intel Core i5 (4th Gen) 4210M / 2.6 GHz ( 3.2 GHz ) / 3 MB Cache Memory: 4 GB DDR3L