A:AnswerTo clarify, the USB-C port is a Power Delivery port meant to supply power and charge your computer. If the keyboard and mouse rely on a wireless receiver, then it would work with that port unless the peripherals are BlueTooth compatible to pair with your computer wirelessly.
A:AnswerYes we can confirm when using this hub it will support 2 additional extended displays, a USB-C port on the hub will support passthrough charging (@ 60Hz) however it is not required to use the hub