The weird thing is, B550 boards aren't due till what, March 2020? Then a couple months later you have Ryzen 4000 series landing. Presumably with X670 boards?
Not sure why the make us wait so long for mid-range boards.
if that's the case there is no reason to buy b550 right? Cause you would just buy an X570 board because they will be dirty chip as retailers try to clear stock ahead of the x670 launch