Sunlight-viewable Touchscreen with Panasonic CircuLumin™ Technology Fully-rugged, Full Magnesium Alloy Case with Handle 18-hour Battery Life (27 Hours with Optional Media Bay 2nd Battery) Standard Backlit Keyboard Wi-Fi 802.11 a/b/g/n/ac, Bluetooth®, antenna pass through, optional 4G LTE multi carrier, optional dedicated GPS (u-blox) Windows® 8.1 Pro 64-bit (with Windows® 7 downgrade option) 13.1" XGA 1200 nit touchscreen Ports: USB x 4, Optional FireWire, SDXC, Ethernet, Optional 2nd LAN (Ethernet), HDMI, VGA, Serial, PC Card, ExpressCard, Headphone, Mic, Dock Connector