This cable is compatible with all 4 pin and 3 pin case fans !!! Sleeved in Black Braiding With a 4 Pin Female Connector at One End and Splits to 3 Male Connectors at The Other End ( 1 of them is 4pin ,2 of them is 3pin ) The Fan Splitter Connects 3 Computer Case Fans to a Single Motherboard Fan Header, Compatible With 4 Pin and 3 Pin PMW Fan Connector