ISV-Certification.\nBecause photographers, light CAD/CAM users, digital content creators, and other industry pros require proven performance and software stability, numerous applications are tested and certified by industry-leading independent software vendors (ISV).\n\nMilitary-Specification Testing\nValidates the ruggedness, durability, and quality of ThinkPad products by testing against eight parameters: high pressure, humidity, vibration, high temperature, temperature shock, low pressure (15,000 ft), low temperature, and dust.\n\nEpic Battery Life With Power Bridge Technology\nStay unplugged for up to 13 hours. Plus, when you need more time, Power Bridge technology lets you hot-swap the removable rear 6-cell battery with an extra travel battery, without powering down. The internal 3-cell battery keeps you up and running.\n\nAward Winning Backlit Keyboard\nFull-sized and spill-resistant, the legendary ThinkPad ergonomic keyboard is renowned for its full array of keys, excellent feel, and TrackPoint® pointing device. It's optimized for Windows 8.1 with convenient multimedia buttons, function-lock capability, and immediate access to view apps. We've enhanced our 2015 TrackPad based on customer feedback, incorporating a larger area with three-button control. The backlit keyboard makes working in dark environments effortless.\n\n10-Point Multitouch Available\nW550s features an optional 10-point multitouch panel, with FHD++ (3k) (2880 x 1620) IPS display. In-Plane Switching (IPS) technology allows for vivid colors and nearly 180-degree viewing angles.\n\nStereo Speakers With Dolby® Advanced Audio™\nA suite of audio technology from Dolby delivers a crisp, clear cinematic surround sound for music, movies, games, and more. Hear every detail clearly and experience the full impact of your entertainment anywhere.\n\nIntegrated HD Webcam & Mic\nNever miss a thing in web conferences: a low-light sensitive 720p HD webcam with wide-angle viewing and face-tracking, along with dual noise-cancelling microphones deliver crystal-clear private and conference mode VOIP meetings. Plus, convenient multimedia keys provide quick and easy access to microphone, speaker, and camera controls. Crystal-clear video, face-tracking and keystroke noise suppression technology will help you web-conference or chat like you're really there. Dual digital-array microphones ensure a premium audio experience.\n\nIntel® vPro Technology\nMakes enterprise-level manageability even more convenient and cost-saving. Manage, protect, repair, or locate your deployed laptops from anywhere in the world.\n\nConvenient Mechanical Docking\nWith the optional ThinkPad Ultra Dock, simply click the W550s into place and easily hook up external monitors, as well as peripherals. Releases with one click. The dock charges your laptop, includes security keys, and is shared across the ThinkPad series.\n\nIntegrated Fingerprint Reader (Optional)\nGet quick, convenient access and secure login with one swipe.\n\nWWAN (3G/4G) (Optional)\nAdd wireless WAN connectivity and go online virtually anywhere without a WiFi connection.