With up to 25 watts of power per channel, there are no limits. The power is supplied via a 4-pin Molex connector. The LC display is attached to the PCI slots. To attach the display you need three free bezel slots.
Lamptron CFM36 Fan and RGB LED Controller for PCI Slot - Black
Lamptron TC20 PCI RGB fan and LED controller - Silver
Lamptron SM436 Sync Edition PCI RGB Fan and LED Controller - Black
Lamptron TC20 PCI RGB Fan and LED Controller - Black
Lamptron SM436 PCI RGB Fan and LED Controller - Black
Lamptron CP436 fan controller ARGB