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This regulator is recommended to regulate the output power in the range of 7-8 watts (12V, 0.6A). The input port of this controller is a USB Type-C socket. The output is a standard 4-pin PWM fan connector. This PWM speed controller supports 12V standard fan speed control and also supports PWM pump head speed adjustment for computer water cooling. PWM Speed Controller for 12V 4 Wire PWM Fan/Pump Built-in DCDC boost circuit (boost USB 5V to 12V).Built-in PWM signal generator (allows you to adjust the speed).