Chosen Solution
You can see the “Whit Cable”, but I do not know what part it is or what it will function to do. Is that for putting the switch in to the Dock so I can go from Dock to TV?
That looks like an antenna cable. Some MacBook Pros have similar looking cables for their wireless cards.
Update (11/25/2018) I confirmed just now that the white cable you see is indeed an antenna part.
Nintendo Switch Antenna cable Wireless WIFI antenna
