One more thing: When you go to the USB B port with the CCK, you lose the ability to charge the iDevice when the M8 is plugged in. So, you get the option of hi-res, but you'll need to charge your iDevice at some point.
The USB A port provides charging when the M8 is plugged in.
EDIT: To fix port designations.
Edited by jazzman7 - 2/22/14 at 7:37am