I recently bought a USB-C hub with 4 USB-A ports which plugs into the USB-C port on my 12 inch 2016 retina MacBook. I was wondering if it was possible to charge my MacBook using one of the USB-A ports on the hub. If so, then what is the best way to achieve this? Would I be better buying a male USB-C to male USB-A cable to plug from the PSU to one of the USB-A ports on the hub? Please advise.