Hard Disk Drives (HDD). Power Panels / Hinge Covers. Dell D3100 USB 3.0 4K Full HD 1080p Triple Monitor Docking Station w/ AC Adapter. The Dell D3100 USB 3.0 Docking Station 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. Expand …..