USB 3.0 to HDMI Adapter Cable USB 3.0 to HDMI Adapter Cable turns an available USB 3.0 port into an HDMI output, with high resolution 1920x1200 video support. Leveraging the high-bandwidth (5Gbps, 10x faster than USB 2.0) SuperSpeed USB 3.0 interface, the adapter functions as an external graphics card to deliver smooth, high-definition content to your HDTV or monitors, allowing you to watch movies in HD. It also provides a convenient external video solution that makes it easy to add multi-monitor capability to a USB 3.0 enabled desktop or laptop computer.