USB3.0 to HDMI Adapter, HD 1080P Graphics Cable with Video & Audio Multiple Monitors HDTV TV The USB to HDMI adapter connects a computer via USB to an HDTV, monitor, or projector with HDMI; Highest performance USB graphics solution available. High-Definition Graphic Images: Leveraging the high-bandwidth (5 Gbps) SuperSpeed USB 3.0 Super speed: USB 3.0 Interface and backward compatible with USB 2.0 Contracted design: Its great for connecting your computer PC to a projector to mirror or extend your display desktop when you are in a classroom or a conference room for showing a presentation If you have any question, Please contact our Customer Service Team, we will try our best to solve the problems