The AUH5020 Adapter converts your USBC port into dual 4K/60Hz HDMI connection to achieve fast and high quality video transmission as well as audio transfer. Connect device with USB Type C tunderbolt 3 port to two external monitors with 4K/60Hz HDMI output. You can enjoy movies games with your families on external ultra HD big screen; Windows OS supports both SST and MST mode Attention: For Mac OS it only does Mirror Mode Can’t extend two different Screen due to Mac OS. This USB C to HDMI adapter resolution up to 4K . Single or Dual monitor with HDMI at 3840x216060Hz; Dualmonitor HDMI adapter also support 2K and 1080p at60Hz offered by the DisplayPort MST technology;Important: ONLY when your devices support 4K resolution. Output audio through a single cable using HDMI s audiopassthrough capabilities. Please connect the monitor HDMI port ?first then the laptop USB C port You may need to change the settings of the default audio output device on system preferences to deliver sound. USB C HDMI Adapter offers an easy setup by natively working on device that supports DP Alt Mode over USB TypeC plug and play No need any driver. Dualmonitor splitter is powered by the USB C port means no external power cords are necessary. Driver free for Windows 8/10/11 Mac OS 10.9 and later Chrome OS and Linux OS.