The USB-C HDMI cable from Brook including a power supply offers three useful functions:
1. A laptop with USB-C can be connected to an HDMI monitor / TV (up to 4K resolution)
2. An Android smartphone with USB-C can be connected to an HDMI monitor / TV
3. The Nintendo Switch can be connected to an HDMI monitor / TV with it (you do NOT need the docking station anymore!).
Thanks to the included power adapter, you can charge the devices at the same time (with the Switch, the power adapter is necessary in any case).
The cable is an ideal travel companion - it is small, compact (also fits together with the Switch in a carrying bag) and can be used in many ways:
No matter if you want to play with the Switch on the TV, connect a second monitor to your laptop or watch movies with your Android phone on the big screen - you only need this cable, an HDMI monitor or TV and a power outlet.
Nothing else. You don't need a docking station for the Switch either.