Brand: StoriteProduct Type: 4 Pin to 2 x 4 Pin Computer Case Fan Splitter Power Cable.Product Description:PWM Case fan splitter connects 2 PWM case fans to a single motherboard fan header.Strong and durable black cable, tough and heavy duty.Compatible with 3 pin Case Fan and 4 pin PWM Case Fan.Features: Supports 2 PWM fans from a single motherboard PWM headerDouble Fan Case Coverage :PWM 2-Fan Splitter Cable provides a quick and inexpensive solution for adding an additional case fan in a computer case. Eliminate the need for a separate fan control by using the fan port on a motherboard. Cable pinConfiguration allows fan speed regulation with the 4th RPM sensing pin connected only to the main fan.The fan splitter cable provide an additional fan to increase airflow in your computer case, reduce the heat within the chassis. This high quality 4 pin Y Fan Splitter Cable is the best solution for messy and untidy pc systems. Cable Compatibility:- Master Fan: 4-pin Male- Slave Fan: 3-pin Male- Motherboard PWM: 4-pin Female- Max Power Rating: 12W3-Pin fan compatible without speed control- Motherboard must be able to power 2 fans