PAY ATTENTION TO THE LIMITATION: The HDMI-end of this adapter should be always inserted into an HDMI interface of monitor that accepts video INPUT including HDMI display projector etc. You must NOT hook up this adapter to your laptop or other devices with standard HDMI port. Allow your device to output video FROM a USB-C or Thunderbolt 3 port TO an HDMI display by connecting to a USB-C 3.1 cable. Support resolutions up to 4K and provides a plug-and-play connection to high-definition displays or monitors. Constructed with double-braided exterior and aluminum alloy casing to ensure that it doesnt wear out over time. Offer great portability and convenience and compact enought to carry it everywhere you go.