Got Vive Trackers coming in soon but I just realized I don't have enough open USB ports for the little dongles...
Would it be better to buy the dongle that all 3 can plug into from "Rebuff Reality" or does that create interference and make avatars glitch out? 
Or should I just get some random PCI to USB card? 

I've heard something about "separate controllers" for the dongles ensure they work better but am not sure what that means...