Black Net Jacket Sleeved 1 to 2 PWM Fan 4-pin Power Splitter Cable, Motherboard CPU SYS Fan Header to 2 Ports Internal Power Hub-Sleeved Black,10 inches,3-Pack

PWM FAN SPLITTER Y-CABLE connects 2 computer PWM fans to a single motherboard fan header;
1 to 2 fan converter cable connects an additional fan to increase airflow in your computer case
MOBO 4-Pin receptacle connects to the 4-Pin header on the motherboard and splits the signal to 2 PWM fans;
Fans can spin at the same speed using software from a motherboard equipped with PWM control
MASTER/SLAVE FAN PLUGS have a 4 pin fan connector a wire that sends the RPM signal to the motherboard connector for synchronizing the fan speed with the other fan;
3 pin fan connector omits the RPM signal pin for tandem fan speeds with both fans
3-PIN & 4-PIN FAN COMPATIBLE with popular brands of computer case cooling fans