Panasonic presents the Toughbook 31, the reliable Windows 7 notebook offering the highest performance in its class along with the world's most rugged design. With drop shock protection and a MIL-STD-810G and IP65 certification, it's the undisputed leader in the fully-rugged category. The Toughbook 31 offers a 13.1" brilliant 1200 nit touchscreen available with Panasonic CircuLumin technology.