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? FAQ Quick Guide What is the max resolution that this adapter can handle? Fixing Ethernet Issues Comments 0 comments Please sign in to leave a comment.