Asus X551ca Xh31 - Core I3 3217u / 1.8 Ghz - Windows 8 Pro 64-bit - 4 Gb Ram - 320 Gb Hdd - Dvd-wri Asus X551CA-XH31 15.6 Notebook Intel Core i3-3217U 1.80 GHz 4GB DDR3 320GB HDD DVD-Writer Intel HD Graphics 4000 Windows 8 Pro Black Manufacturer & Manufacturer: ASUS X551CA-XH31