Charging two devices at once doesn’t necessarily require a multi-port wall plug — if you purchase the right cable. For ...
My USB-C may not be the same as yours. And the USB-C you bought two years ago may not be the same as the one you got today.
The idea of this monitor is that you plug the USB-C cable into your laptop, and it handles everything – you get power to charge the laptop, and the same cable handles video and other accessories.