Warning, do not buy.
Everything worked well for a few weeks. Went to put all fans on static color or any of Corsair's schedule through iCUE. The fans have now started flashing, stopping at a solid color, or turning off individual LEDs in the fans at randomly selected times.
To try to solve the problems I have tried to move around the fans in different ports, tried 4 different lightning hubs from LL and ML and tried different versions of corsair's software.
If you google a bit quickly on the problem you will find lots of posts on Corsair's own forums but no answers or workable solutions, it is just trying to move around the fans, reinstall the software and ultimately RMA case, but there is no guarantee that you will get a working product back so it is more or less meaningless.
Note that this only applies to LL fans and not ML which works great in the same hubs, but they are not available in white at the time of writing. so avoid these as there is no solution to the problem and I can guarantee that it will drive you crazy.