This USB 3.0 to Dual HDMI Adapter lets you add two independent HDMI displays to your computer using a single USB 3.0 port. One of the HDMI ports can output resolutions up to 4K, while the other can output resolutions up to 1920 x 1200. Adding more displays to your workstation can be difficult, especially if your computer does not support MST or offer many external video ports. This USB to dual HDMI adapter features two video outputs, boosting your productivity by giving you more screen space to work from. One of the ports on this USB video adapter supports resolutions up to 4K at 30Hz, enabling you to connect a 4K monitor to your computer, even if your laptop or desktop video card doesn't natively support 4K output. The USB to HDMI 4K adapter lets you extend or mirror your primary display onto an Ultra HD monitor or television. Using the high-bandwidth USB 3.0 interface, this USB 3.0 to HDMI adapter enables smoother scrolling through documents, higher resolutions and better overall performance than earlier USB adapters. This USB 3.0 to Dual HDMI Adapter is backed by 3-year warranty and free lifetime technical support.