3 pre installed fans does anyone know which goes to the RGB on the MOBO? in Masterbox 5 Series Posted October 18, 2017 Had a quick question about the MasterBox Lite 5 RGB ATX Mid-Tower with 3 x 120mm RGB Fans. Does anyone know which wires control the LED for the fans? Right now just to get the fans working I had all the wires plugged into my PSU which all my fans turn on so I just need to figure out the LED wires that connect to the RGB port on the MOBO I have the connectors but again need to know which wires. If any pictures or videos are available I would really appreciate that.