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3-pin vs. 4-pin cooling fan: Analysis of advantages and disadvantages of PWM speed regulation and voltage speed regulation
Mar 24 , 2025
Cooling fans play a crucial role in electronic equipment, servers, industrial equipment and other fields. For different use needs, there are two main types of 3-Pin (3-pin) and 4-Pin (4-pin) fans on the market, and their main difference is the speed regulation mode - 3-pin fan speed regulation by voltage, while 4-pin fan uses PWM (pulse width modulation) speed regulation. So, what are the advantag...
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