Computer PC 3pin Fan Speed Controller 12V 5A 60W 1.5A 3A 4.8A Switch IDE Input
4pin connector is input, 3pin connector is output (connect to fan). Working with all 12V fan, support 1.5A, 2.4A, 3A ,3.3A, 3.9A, 4.8A. Power: max 60W. 4-pin connector is power input, 3-pin connector is output connect to fan, do not reverse.