The UPTab USB-C (Type-C) to Dual HDMI 2.0 4K@ 60Hz Adapter supports a computer to connect to an HDMI UltraHD display. This adapter is ideal for those engaged in high-level computing, gaming, and graphics by providing the highest performance available. Connect the USB-C end of the connector to your computer and plug your existing HDMI cable from the display into the adapter. The adapter converts the USB-C video signal into an HDMI signal simultaneously at up to UHD 4K 4096x2160 at 60Hz. With support of the 4:4:4 color format, the adapter will enable true RGB color without the visual color degradation that occurs in other color formats that use subsampling. When audio is desired, the USB-C adapter will also transmit up to 8-channel audio for an immersive audio and video experience. Transmits video over dual HDMI single or simultaneously. Extended display mode is supported only for Windows 10, 8, and 7. Apple macOS does not support (EST) Extended mode.