Just inspect the cable and see if 4K, 8K or 10K is printed on it. You may find it on the package as well. If you have 4K printed on it, then it is either HDMI 1.4 or HDMI 2.0. Or if the label says 8K or 10K, then it is definitely HDMI 2.1.
Just inspect the cable and see if 4K, 8K or 10K is printed on it. You may find it on the package as well. If you have 4K printed on it, then it is either HDMI 1.4 or HDMI 2.0. Or if the label says 8K or 10K, then it is definitely HDMI 2.1.