Most Thunderbolt 3 Windows computers from year 2015 and early 2016 require Thunderbolt firmware, BIOS and GPU drivers software updates before the Thunderbolt 3 port can work properly. Hence, if you have Razer Blade Stealth from 2016, you must update all the hardware related drivers and windows updates before CalDigit USB-C Pro Dock and USB-C Dock can work properly to output video, charge laptop and connect to USB devices.
Below you will find Razer’s download link:
Razer Blade Stealth / Hardware Drivers