<b>THE CORPORATE STANDARD GOES EXECUTIVE LEVEL</b><br><br>With carbon fiber reinforcement for durability, a newly enhanced keyboard optimized for Windows 8, and introducing the ThinkPad 5-point TrackPad, the T431s Ultrabook™ delivers premium features.<br><br>- ThinkPad Precision Keyboard with optional backlight<br>- Dolby® Home Theater® v4<br>- Intel® vPro™<br>- Roll-cage technology, a collection of durability features that add extra strength and rigidity to the magnesium bottom shell and carbon fiber top cover<br>- Bottom mechanical docking compatible with Lenovo ThinkPad Series 3 Docks<br>- Integrated 720p HD webcam with face tracking<br>- WWAN 3G/4G<br>- 30-day standby mode<br>- 2x USB 3.0, mini DisplayPort, VGA, 4-in-1 card reader, optional smart card reader, Ethernet RJ45, 3.5mm combo jack headphone/mic