PWM Splitter Cable: Sleeved in Black Braiding With A 4 PIN Female Connector at One End and Splits to 3 Male Connectors at The Other End. increase Airflow: The Fan Splitter Cable Provide Additional Fan to increase Airflow in Your Computer Case. 1 to 3 Ways Fan Cable Splitter: The Fan Splitter Connects 3 Computer Case Fans to A Single Motherboard Fan Header, Compatible With 4 PIN and 3 PIN PMW Fan Connector. Convenient to Use: 26 cm Cable Allow You More Choice in Where You Want to Position Your Pwm or Fans inside Your Case. Applications: Suitable for CPU or computer case fan.