Panasonic presents the Toughbook 31, the reliable laptop offering the highest performance in its class along with the worlds most rugged design. With drop-shock protection and a MIL-STD-810G certification, its the undisputed leader in the fully-rugged category. Its new Intel Core i5 and i3 processors, along with available discrete graphics, pack a punch to deliver desktop-class performance and improved video/3D graphics. An integrated webcam option, larger storage capacity and up to 21 hours of battery life (with optional media bay 2nd battery)1 set the Toughbook 31 apart from the competition. Combine six generations of delivering rugged performance plus 13 years of consistent docking compatibility, and you have a computer that will go the distance with you anytime, anywhere. Standard Configuration Operating System: Genuine Windows 7 Professional Processor: Intel Core i3-3110M 2.40GHz Storage: 320GB 5400rpm shock-mounted flex-connect hard drive with quick-release Memory: 2GB SDRAM (DDR3-1333MHz) standard Display: 13.1" XGA touchscreen Wireless: Intel Centrino Advanced-N 6235 802.11a/b/g/n, Bluetooth v4.0 + EDR (Class 1), dual pass-through antenna (user-selectable) Battery: Lithium ion, battery op: 9 hrs Warranty: 3-year limited warranty, parts and labor Rugged Rating: MIL-STD-810G and IP65