RF bridge or RF bridge R2

I own some RF bridge units. They support up 16 sensors. I want to know what are R2 advantajes. Does R2 support more sensors?

Better material, same number of connections as the previous generation.

BTW, may I know why are you ask about the number of connections?

I have one of my bridges full with 16 sensors

Rf1 is better. The R2, once updated, if you delete the Bridge for pairing in other home, you cannot pairing. The pairing process is impossible, stop in 60%.