Despite the 8K in its title, the HDMI two.one port can support only as high a resolution as an exterior 4K display at 60Hz refresh fee, as well as Show selections of 2K/144Hz and 1080p/240Hz. Apple display limitations indicate that its possible 8K/30Hz Screen support is restricted to Windows devices. https://www.linkedin.com/posts/anhometech_anhome-usb-c-hub-hdmi-adapter-sd-card-reader-activity-7180578073875001344-MUdi?utm_source=share&utm_medium=member_desktop