A:AnswerEach fan has two cable attach. One is for the fan power which is a female 4 pin. The second one is for the RGB controller which is female 3 pin.On my build I was using a Asrock B450 Pro4 motherboard and need to buy "Cooler Master 1-to-5 ARGB Splitter Cable / 5V - Support 3-pin Addressable RGB - LED Sync Cable for MasterFan/MasterLiquid ARGB Series Support(ARGB 1-to-5 Splitter)" in order to get it to work. Motherboard did not have RGB controllers. Please see picture attached.