Despite the 8K in its title, the HDMI 2.1 port can support only as high a resolution as an external 4K Exhibit at 60Hz refresh level, as well as Exhibit alternatives of 2K/144Hz and 1080p/240Hz. Apple Display screen restrictions signify that its prospective 8K/30Hz display support is restricted to Windows 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