What is the max pass-through charge for this adapter? John July 06, 2018 08:38 Updated Follow A. The USB-C pass-through power port on this adapter has a max charge of 49W. Related articles Does this device only support the charger to the type-c port, or can I use it for a type-c flash drive? and data transmission? What is the difference between the Slim Multi-Port Adapter and the Multi-Port Adapter? Is 4K 60 pictures/s possible via HDMI ? Quick Guide Does this give you true gigabit on a gigabit network? Comments 0 comments Please sign in to leave a comment.