About 8K Display
8K display will be popular, you will not need to change any hub for at least five years in the future if choose this hub now.
1) To achieve 3840x2160/120Hz or 7680x4320/60Hz, please use with 8K monitor and HDMI 2.1 cable, and the laptop should support USB4.0 or Thubderbolt 4.
2) Since MacBook does not support 8K at present, the resolution will depends on the maximum supported by MacBook.
3) The resolution is 16 times that of 2K. For creators, images and videos will indeed have a new look.