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 2 Male Connectors at The Other End ( 1 of them is 4pin, 1 of them is 3pin ) The Fan Splitter Connects 2 Computer Case Fans to a Single Motherboard Fan Header, Compatible With 4 Pin and 3 Pin PMW Fan Connector The Fan Splitter Cable Provide Additional Fan to increase Airflow in Your Computer Case The length of the product (Approx): 10.6 inches, Color: Black