can't decide which controller to get

[TechnoNRGKid]

I use both with my pc and mac.. flawlessly :lol:

Maybe you have either a sketchy usb bus.. or a lemon oxy8..

it might be a faulty usb chord.
I had the same problem and still do with my cellphone usb cable.
I've seen that problem a few times with different hardware connected to a usb cable.
"hardware unrecognized", "Unknown device" related.