Description: This computer cooler power cable adapter allows you to connect and control multiple fans. The computer fan power cable splitter's CUP fan channel carries an RPM signal which can be read by the motherboard. The computer fan power cable adapter features wide applications, can connect with a 3-pin or 4-pin fan. The fan power cable adapter adopts for superior material, is durable and long-lasting. The fan power cable splitter is reliable to use, is a good fit for replacing the worn or damaged. Specification: Material: Nylon + plastic + metal Color: Black. Length: 39.5cm. Voltage: DC 12V. Note There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Only the fan on CPU Fan channel is used for monitoring. All connected fans are following the same PWM signal, speed control is the same for all fans when use fan controller software. PWM capable connectors must necessarily be 4-pin, but not all 4-pin motherboard connectors implement or enable the PWM signal modulation by default. Please carefully consult your motherboard documentation in this respect. This is only a fan power cable adapter, NOT fan speed controller. Only 4-pin PWM fans speed can be adjusted by fan controller software. 3-pin fan would run in full speed, can not be adjusted when connect. Package included: 1x Computer fan power cable splitter.