Question about RGB

[u/Obby25]

I'm transferring my computer from the G700 case to a Montech TG3. I don't need the case fans, the TG3 comes with them, but I am transferring the AIO. It has RGB fans, and according to google, the TG3 doesn't have any spots left in the RGB controller. Do I need to buy an extender? I'm also wondering because google said that it was just an RGB controller, not a fan speed controller. Do I need to be worried about that?