Can't back up and charge at the same time.
A friend of mine has a 2017 Retina screen Macbook. It only has one USB C port. She is trying to back up to an external hard drive, but was told she has to have the power plugged in at the same time. How does she do that with just the one port? She bought a hub, but that doesn’t include a way to plug in the power.
MacBook