Toshiba Tecra Z40 - Ultrabook - Core i7 5600U / 2.6 GHz - Windows 7 Pro 64-bit / Windows 8.1 Pro 64-bit downgrade - 16 GB RAM - 500 GB HDD - no optical drive - 14 touchscreen 1920 x 1080 ( Full HD ) - Intel HD Graphics 5500 - 802.11ac - cosmo silver with