My LINK Cable (not Oculus branded, but cheaper KUJECT cable) charges fine. I also switched to a powered hub which slightly decreases the connection speed, but charges much better. Worked fine for over a year. Recently, I have been getting some random disconnects which I think might be due my Link Cable being a little flaky (rolled over it in the office chair one too many times, methinks!)
I switched to AIRLINK, BUT I keep the LINK CABLE plugged in. (I did have to drop my Bandwidth setting for AIRLINK TO WORK) I see pretty much NO DIFFERENCE in the quality or frame rate (DCS or BMS) and the cable still keeps my headset charged!
Of course if you are going to be tethered anyway, you might as well use the wired LINK, but my headset disconnection issues disappeared and everything works fine.
It is a Win Win situation (for me at least).
Just putting it out there…
P.S. Of course the cable doesn’t keep the headset 100% charged, but after a 2 hour VR session, it only drops to about 70-75% which is damn good! Especially with AIRLINK which sucks up a lot more juice. By contrast, using the Headset in standalone mode watching Netflix or something, after 2 hours it is down to 40-50% or less.