The thinkpad usb 30 pro dock delivers a professional universal usb docking solution with fast usb 30 ports and digital video ports for quick and easy connection to all of the workspace peripherals you use every day simply plug a single usb 30 cable into your lenovo pc for instant access to up to two external monitors gigabit ethernet headphonesspeakers usb printers scanners keyboard mouse and more for daily use the dock can also charge your mobile device via the always on usb port