What are the USB requirements for using the Quest 2 via USB-C?
Is possible to use a Quest 2 in a PC with a good USB-C to USB-C cable or the Oculus Link Cable, but what are the USB requirements when using it via USB?
The USB 3.0+ standard is very confusing so I don't understand what specific USB version it requires.
According to the https://www.oculus.com/accessories/oculus-link/ :
USB 3.2 Gen 1 Signalling 5 Gbps USB 2 / Backwards-compatible
POWER SUPPLY : 3A
And https://support.oculus.com/articles/headsets-and-accessories/oculus-link/oculus-link-compatibility :
Oculus Link requires a high-quality USB cable capable of supporting data and power. You'll also want to make sure that the USB cable is at least 3 meters (10 feet) for an optimal and comfortable experience.
You can also use a third-party cable. While quality can vary across third-party cables, we've tested the Anker cable internally with good results.
(The https://www.amazon.co.uk/dp/B01MZIPYPY/ , I assume)
Looks like 5Gbps speed is crucial for Oculus Link to work, though delivering power seems to be not so important... actually, it's not even recommended, since...
To keep your Oculus Quest 2 or Quest in good working condition, you should only charge your headset with the charger that was included in the box. You should also avoid charging your headset while it's in use.
However, every USB-C cable that is able to provide 5Gbps speed is also capable of providing power, so playing with Oculus Link would gradually damage Quest's battery, so keep that in your mind.
Sidenote: According to https://www.reddit.com/r/oculus/comments/jgb4yr/oculus_link_test_speed_with_quest_2/ ...
Most of reports shows that connection speed is ~3.0Gbps even with official Link cable, and they say that they're not facing any issue.
Some of users even having ~1.2Gbps speed, but they also aren't experiencing any issue, so... 5Gbps is not so crucial? Which is understandable, since videos doesn't take that much of data value.
FWIW, you can also use Wifi to use Oculus Link( https://support.oculus.com/509273027107091 ), and I suppose they aren't capable of transmitting stable 5Gbps data. Though, in my experience, I've had no issues even when playing Beat saber(which requires specific timing to play) with Oculus Air Link.
In conclusion... 1.0~2.5Gbps is sufficient. Power delivery is not so important, or rather, should be avoided.