Control power: 8 fans can be used at the same time, PWM fan speed control, 4-wire fan or 3-wire fan with PWM speed control port can be used in common. Note the fan interface sequence is commonly used. The maximum power of a single fan is within 60W, and the power is within 300W (note the power depends on the power supply of the chassis)Quiescent current: 0.015A (standby state)PWM duty : 0%-100%PWM frequency: 25khzNOTE: The batches of raw materials are different, and the colors of the interfaces and capacitors on the product are random(the specified color cannot be ), which does not affect the use.NOTE: The fan can only be used with PWM speed control function, and there must be a PWM speed control .NOTE: This model is PWM speed regulation, and the speed regulation frequency is about 25K. PWM is the speed control signal, P is the 12V , and G is the 12V negative . Do not make any mistakes in the wiring sequence, as mistakes will cause damage.Type: Fan Speed GovernorWorking voltage: DC12VColour: greenMaterial: PCB + plastic + metalSize: 60x35x16mmPackage Contents:10 * Fan Speed ControllerOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.