Toughbook CF-54 with Windows 8.1 Pro, magnesium chassis, user replaceable battery and user replaceable storage is the thinnest and lightest 14" semi-rugged Toughbook ever built, but doesn't compromise on durability, with an unique 'honeycomb' design for improved strength and spill resistant keyboard & touchpad area. In terms of flexibility, the Toughbook CF-54 is equally outstanding. It offers a huge array of configuration options, making it easier for customers to have exactly the device they want.