It is a fan accessory Y-Cables for 4-pin PWM fans. The Y-Cables make it possible to run five 4-pin PWM fans on a single fan header, and to let the motherboard control the speed of the two fans simultaneously.
**Please note that the second split end only has 3pins (missing the third pin) as the motherboard can only detect one speed from the first case fan.
- This item allows for five 4-Pin fans to use one motherboard header or one standard 4-Pin power cable (either from a power supply or a fan controller).
- Material: Plastic + Nylon
- Color: Black
- Cable length: 30cm
- Compatible with: 4-pin PMW fan connector
- Connector: 1* 4-pin female; 5* 4-pin male( one is 3-pin, the other one is 4-pin )