Control : 8 fans can be used at the 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 of a single fan is within 60W, and the is within 300W (note the depends on the supply of the chassis) Quiescent current: 0.015A (standby state) PWM duty cycle: 0%-100% PWM frequency: 25khz NOTE: 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 . NOTE: The fan can only be used with PWM speed control function, and there must be a PWM speed control line. NOTE: This is PWM speed regulation, and the speed regulation frequency is about 25K. PWM is the speed control signal, P is the 12V positive pole, and G is the 12V negative pole. Do not make any mistakes in the wiring sequence, as mistakes will damage. Type: Fan Speed Governor working voltage: DC12V colour:Green Material:PCB+Plastic+Metal size:60 x 35 x 16mm Package Contents: 1 x Miner Fan Speed Controller Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.