Question about Corsair iCUE QL120 RGB

First, plug the fans into the lightning node in order. Then you have to plug them into a "pwm fan switch" with three outputs. You can buy this crossover on digitech. Then plug it into a connector on the mainboard. When the pc is running, download the corsair ique software and the pc will automatically recognise the fans. Click on the lightning node and you're done.