Xbox One's wireless-controller dongle will work with Steam Link (correction) | VentureBeat
How to Connect an Xbox 360 Controller to a PC | Digital Trends
In addition to Xbox 360 and Xbox One controllers, it was discovered that Steam Link also supports PS3 and PS4 controllers. I decided to give my Wii U Pro controller a shot. :
STEAM LINK SET UP DEMO (PC GAMING - USB DEVICE TEST) - YouTube
How To Use A Controller On ANY STEAM PC Game Tutorial (Xbox, PS4, Steam Controller) - YouTube
Steam Link: XBOX 360 Controller anschließen - so geht's - CHIP
How to Connect an Xbox 360 Controller
How to use controllers on the Steam Deck | PC Gamer