@Samfisher so will this work (in in mobile so I couldn't get link so I got the name of the splitter)
4-Pin Molex to 4 x 3/4-Pin PC Case Fan Sleeved Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Cooler Cooling Fan Splitter Y Power Cable
I forgot to say the 3 intake fans are RGB willr they still work ?