I was also extremely confused by this Corsair system. I used this guide and found the right products:
https://forum.corsair.com/v3... According to the guide, this hub does not have a USB interface. In your case, you need a controller with a channel output to control the RGB. I have a Corsair channel output directly on my MSI board and therefore only need this hub for my fans. If you don't have that, a Lighning Node Core is recommended, which has the USB header to be controlled via iCue. If you also want to control the fan speed via iCue, use the Commander Pro.