I think this was confirmed that 160MHz width is only available for the backhaul/node?
I am pretty sure I read this somewhere on this forum.
It was, and it was stated there was a claim by ASUS they would be adding this in a firmware update.
The 5GHz 1 radio is (I think) 2x2 so it would become capable of up to 2400bps sync rate a best at 160MHz.
I'm still wondering if I should get these, problem is they only come in a 2 pack but at this stage I only need one and the cost well ...