Lenovo OneLink Technology\nGet more from your power cable! OneLink technology is a unique interface that simplifies connectivity through a single cable to the ThinkPad OneLink Dock. The OneLink dock provides dedicated video, USB 3.0 ports, Gigabit Ethernet, and audio—all while charging your notebook.\n\nAward-Winning 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. Plus, a larger TrackPad with buttons, which can be configured multiple ways through Settings. Available optional backlight makes working in dark environments effortless.\n\nLong Battery Life\nAll-day computing with up to 9 hours unplugged lets you get a full day of work in on a single charge.\n\nFast Data Transfer\nMove data quickly between the E550 and other devices with SuperSpeed USB 3.0, which enables up to 10 times faster file transfer, allowing for lightning-fast copying of large media files, as well as seamless connections between audio- and video-related peripherals.\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.\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\nLenovo Cloud Storage\nProtect your critical data, while also making access to information and file-sharing quick and convenient. Automatically back-up and synchronize data across the organization, while enabling access from multiple devices. Data is encrypted on transfer for an extra level of security.