A tip for Mac users updating to the latest OS X out there. I've got a Turnigy9XR w/ USB dongle connected to a MacBook Pro that worked great.
With the recent OS X 10.12 udpate though the controller no longer was recognized. I ran an SMC reset: https://support.apple.com/en-us/HT201295 and now everything is running again. Good luck, happy flying.