Hello Elenoy The RGB splitter is there to connect RGB, ARGB and RGBpx and only gets power through the SATA port. I would throw the China controller out of the window and use this one, especially for water cooling (was exactly the same with my Arctic 360=). But if you want to use RGB/ARGB/RGBpx fans at the same time, you have to make sure that you still have enough slots. I hope this has helped. Best regards and good luck