Today I look at yet another Zalman product, the Zalman 300A-APF power supply. Zalman is of course dedicated to quiet cooling so a lot of their products try to provide the best cooling at the lowest noise level which I really like. By implementing heat-sensor circuitry that controls the cooling fan's speed (rpm) in relation to the temperature within the power supply, emanating noise has been greatly reduced. This power supply has a lot of features which are listed below and which I will take a look at more in depth as I go along