A. The Multi-Port Adapter will connect to the Thunderbolt 3 port, but the adapter will dangle off the port which may not be the best for the adapter or the port.

We would like to recommend to you our Type-C Clamp Hub Pro if you have the latest 2017 iMac or iMac Pro. It has similar peripherals to the Multi-Port Adapter but it is adjustable and fits into the bottom of the iMac into the vent slots.