Ah, thanks for clearing that up! I mistakenly assumed that Corsair would have the foresight to make a single controller that could handle both (even if not at the same time) to cut down on confusion.
Then I remembered that the US webstore was briefly selling Commander Mini's with free single HD120 RGB fans, because looking at features and connectors, there'd be no reason to think it wouldn't work. I can only imagine how many burned out fans that lead to...
It seems like there's like 5 dev teams all trying stuff at the same time without telling the others.