https://techcrunch.com/2018/10/31/this-gadget-adds-two-usb-3-0-ports-to-apples-power-adapter/

This is clever. Made by HyperDrive, the USB-C Hub slips onto an Apple USB-C power adapter and adds two USB 3.0 ports. That’s all. I love it and it addresses a major shortcoming of Apple’s current notebook lineup.

Apple ditched full size USB ports in favor of the versatile USB-C. It makes sense on some levels. USB-C supports nearly every bus format available but there are still a bunch of devices that ship with the older USB plug. Like the iPhone. If a person walks into an Apple store and buys the latest iPhone and the latest MacBook Pro, the iPhone will need a dongle to recharge off the MacBook Pro. Why not make it this dongle?