No. While Oculus does advise that you buy their more expensive and in-house produced Link Cable, it is not the only cable that can tether your Quest headset to your PC. The company themselves make it clear that alternatives such as the Anker Powerline are just as good. However, the caveat here is that there will certainly be no issues, no hiccups, and a promised, smooth experience if you use the Link Cable from Oculus.