Tripp Lite's U342-SHG-001 is a compact, mini docking station that adds a HDMI or VGA video port, Gigabit Ethernet LAN port, and USB 3.0 port to your laptop, all through a single USB 3.0 connection. Built-in USB cable tucks away for easy transport. Ideal for laptop users who need the ability to use their laptop in a desktop environment, while maintaining the ability to quickly unplug and go. Bus powered...no external power adapter required. Backward compatible to USB 1.1 and 2.0 generations.