Hotswap of keyboard is not fully supported, you will have to connect keyboard with the converter first, then plug-in USB port. You can hotswap mouse, though.
AEK left/right modifiers discrimination, ISO layout and Adjustable keyboard media keys
To use these features you have to connect keyboard to the converter first before plug-in USB port.
Keyboard initilization needed for the features occurs only when the converter powers up with current firmware.
https://geekhack.org/index.php?topic=14290.0