The ThinkPad USB 3.0 Ultra Dock is an universal USB docking solution that not only delivers a premium display experience (up to 4k2k resolution via DP port), but also provides quick and easy connection to all the workspace peripherals you use every day. Simply plug in a single USB 3.0 cable into your Lenovo PC for instant access to up to two external monitors, USB ports, Gigabit Ethernet, headphones/speakers, USB printers, scanners, keyboard, mouse and so on for daily use. The Dock can also charge your mobile devices via two USB always power on ports.