Thanks for all your help.
One last question:
Can I connect and control (fan speed, pump speed, RGB lighting effects) the devices listed below with (1) Commander Pro and (1) RGB Fan LED Hub?
(1) XD5 RGB Pump/Reservoir with temperature probe
(1) XC7 RGB CPU water block
(4) QL120 RGB Fans
Thanks again, sorry for all the questions but I have already spent a bunch of money on this and don't want to buy the wrong gizmo...