Dell XPS 15 9530 Connection Manual page 8

NOTE: The resolution, refresh rate, and maximum number of external monitors supported by the dock are dependent on
the compatibility between computer and dock.
You can connect up to three external displays directly to the Type-C ports on your computer or you can connect the displays to
the computer using the docking station.
● Connect three external displays directly to the two Type-C ports and the docking station.
● Connect up to four external displays directly to the WD19TB series docking station, and then connect the docking station to
the computer.
8 Connect external displays