Audio Transport Module York

Is the 5V USB buss just a standard 1,5A minus 150mA for the MCU?
Yes
Any downsides compared to the bigger module?
There are no clocks on this board but since you want to use it with ADAU - it does not matter. You can configure it to use MCU's PLL and ASRC in ADAU (which you'll have to use anyway).
The rest of functions is same.

I should probably readt that thread to end before I ask other stupid questions 😛
There is not much written about this version, I still haven't released datasheet for it.