For MacBook Pro Users who would like to use the grandMA3 onPC Command Wing, please use the original adapters from Apple.
This one from example.
Most importantly, please use the first USB-C port on right-hand side (marked in the picture attached).
For 2016 & 2017 models (at least), the USB-C ports on the left-hand side have reduced bandwidth.
The one on the right (marked) seem to have the highest bandwidth.