Working with a dual boot system on a 2013 MacBook Pro, OSX 10.10.5 and Windows 7 on the same machine.
Just got a SixKeyBoard after seeing the Tested.com review. It works flawlessly in Windows, and it works almost-flawlessly in OSX until I unplug it and plug it back in. If that happens, I have to shutdown and reset the SMC (Command+Option+Shift+power button after shutdown) for the SixKeyBoard to function again.
I noticed when I unplug it, and plug it back in, the 6key is listed in the System Report under USB, so I know the computer see's it, but I get no response when pressing keys.
Unplugging and plugging in has no negative effects in Windows.
I can keep resetting the SMC for now but I'm curious if someone has a deeper understanding of this issue or a possible fix.