Are they just not programmed to interface with OSX? Am I just doing the proverbial it wrong by trying to mine through a Mac? The reason I ask is that after testing with the U2's it seemed to output more consistent overclock voltage to the chips (arranged in series via a Kanex 3.0 hub). Granted, this doesn't matter, as the R-box uses a separate PSU, but still, it'd be nice to have at least one of my laptops for something other than mining room decor.
Definitely open to any comments/suggestions. Like I said, I've got everything running on a Lenovo right now, but cross-system compatibility is always reassuring.
These use a usb1.1 chip for communication. There's a good chance you're plugging them into a usb3 slot which may not work with some usb1.1 devices. See if you have separate usb2/3 slots and try the 2. If not, try plugging a usb2 hub into your mac's usb3 slot and plug it into that hub. You could also try the official cgminer which only just got full support for these.