Funny I wrote a bolg on this yesterday (posting next week).
Short of the long:
ALL current HDBaseT units should support 4K/60, 4:2:0 color (Non HDR) & HDCP 2.2.
Watch the "HDMI 2.0" part, it is misleading.
Right now 4K (as it is today!) works within the older HDMI 1.4 Spec/Bandwidth.
Yes it is called out as a part of HDMI 2.0, only because it did not exist to be written into HDMI 1.4.

I of course would suggest the Ethereal HDBaseT products and their (very) humble tech support.