The Dell™ Docking Station - USB 3.0 connects your laptop to up to three additional monitors, various external devices and the Internet with a single cable. It's a convenient way to expand the capabilities of your portable PC and customize your desktop computing environment. This sleek, compact dock unlocks enhanced productivity and entertainment options with high-speed connectivity and support for Ultra HD 4K displays. Designed for Ultra HD 4K resolution, this USB 3.0 universal docking station enables compatible PC's to display 4K resolution when connected.
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The device works well as a way of extending the laptop into a more complete system for desktop use. The added monitor ports and USB ports allow me to use the laptop as though it were a full desktop. The multiple monitor environment it facilitates is great. It was a good purchase. I would recomment it as a way of extending the functionality of a laptop.