I have a Cooler Master Storm USB keyboard. I have plugged it in to my new MacBook Pro. The OS took me through the keyboard setup screen, and 'recognized' the keyboard as a standard US one. Some keys work, other keys do strange things. When I press c, it types a c after the cursor, instead of before. When I type e, it types an e along with a space after it. Is it possible that this particular keyboard will not work with Mac OS X?

  • Have you verified it works correctly under Windows? It's important to ascertain this as it will save a lot of Mac troubleshooting if it turns out to simply be a defective keyboard. – ScunnerDarkly Mar 12 '15 at 14:08
  • @ScunnerDarkly - It does not work correctly in a Windows Parallels VM. I don't have bootcamp Windows installed. On my PC, the keyboard works fine. – HH- Apologize to Carole Baskin Mar 12 '15 at 14:08
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    Assuming I'm looking at the correct model of CM keyboard, I wonder if the NKRO mode is causing issues as it's not supported by OS X. The manual suggests there are two rollover modes, 6-key and full NKRO. Have you tried changing the rollover mode? – ScunnerDarkly Mar 12 '15 at 14:16
  • @ScunnerDarkly You sir deserve a Nobel Prize. Please put this as an answer. Switching NKRO mode fixed the problem. – HH- Apologize to Carole Baskin Mar 12 '15 at 14:49
  • Glad it sorted your problem, I've added an actual answer below. – ScunnerDarkly Mar 12 '15 at 16:04

For anyone else with this issue...

Referring to the user manual for the Cooler Master Storm USB keyboard, check the N-Key Roll Over mode (NKRO) as OS X doesn't support NKRO.

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