Imagine a USB-C dock with a USB3 port, a HDMI port, and a USB-C charger input port. If you connect such a dock to your laptop without plugging a charger into it, the laptop will feed this dock ...
What I like about this Cyber Acoustics dock is that it can drive two 4K displays if you need to, at 60Hz resolution. It also can fast-charge a smartphone with its integrated USB-C dock ...