Oculus Link is Available in Beta
Oculus Link allows you to use the Oculus Quest—an otherwise wireless, stand-alone headset—to play Oculus Rift PC games via tethering using a USB cable.
This allows you to expand your library and play many high quality PC VR games from the Oculus Store, and even Steam, on the mobile headset whiled plugged into your computer—great news if you want to play some massive games like Fallout 4 VR, Skyrim VR, and No Man’s Land. Two recent AAA game titles that Oculus is happy to announce working with Link are Asgard’s Wrath and Stormland.
Basically, your PC streams to the headset using H.264 video compression, VR compositor functions are split between the headset and the computer to reduce latency, and bingo-bango you are playing PC VR on the mobile VR headset.