The LEDs are connected in a chain, so you can make 2 different LED loops (your 4 fans, pump and RGB strip will only use one of 2 LED connections together). You can connect the fans with the triple split cable without any problems (so 3x3 fans would be possible). However, it may be tricky with cable management in BigTower cases, as the LED cables are sometimes a little short. I recommend to lay the whole fan loop and 3-fold split cable already before the MB installation and to do the whole thing behind the MB if you have to go from the rear part of the case directly to the front part. If you have any further questions or tips, please feel free to ask.