One Way: The only transfers from the HD Multimedia Interface source to the USB C display. Connect the HD Multimedia Interface male connector to the HD Multimedia Interface output port of your PC laptop graphics card TV box etc. Connect the Type C male connector to the Type C interface of display devices like monitors portable displays etc. It supports the HD Multimedia Interface to USB C display for laptops like monitor for U2419HC but is not suitable for USB C smartphones or USB C Resolution: The HD Multimedia Interface to Type C adapter upports resolutions up to 4K at 60Hz and is backward compatible with 2K at 144Hz 1080P at 60Hz and more. Plug and Play: Simply plug it in and can be used no need to install any drivers. It is powered by USB and can be connected to any USB port or wall charger for a 5V 1A power supply. Material: The HD Multimedia Interface to Type C adapter is built with gold plated connectors and premium aluminum casing ensuring stable transfer and long lasting durability. Important Note: The USB C port supports video output only. Please do not connect USB C hubs USB C docking stations or USB C drivers to the USB C port of this product. Make sure your USB C input display supports video input. Some monitors' USB C are for power only.