What is the max pass-through wattage this can pass through to the Macbook? John July 09, 2018 10:57 Updated Follow A. This hub's USB-C port has a max pass-through charge of 29W. Related articles What Macbook is this compatible with? Quick Guide FAQ What's the input voltage specification for this for the power supply? What is the max pass-through wattage for the Type-C Port? Comments 0 comments Please sign in to leave a comment.