USB-C output at one end and HDMI input at the other end allow you to connect your PC, smartphone, laptop, or tablet to HDMI equipped external display units Supports 3840 x 2160 resolution at 30Hz to give you crystal-clear 4K Ultra HD videos on the big screen without any lag 3" cable length allows you to carry the adapter in your laptop bag easily Plug-and-play connectivity doesn't need software or a driver install after connecting the adapter Reversible USB-C connector offers effortless plug-in with either side up