FDSF 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 use.NOTE: The fan can only be with PWM speed control function, and there must be a PWM speed control line.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 positive pole, and G is the 12V negative pole. 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 * Miner Fan Speed ControllerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.