They are SP 120s that are included with the case - so in theory it should all marry up(?) And i think if you buy a pack of 3 you get the controller included (from memry/looking when he was thinking of getting 360mm - but he bought quickly - no messing ).The new SP fans should worth with iCue , not sure if the old ones will just being RGB and not ARGB.
Did the controller work with iCue before installing new fans /AIO ?