"24V DC Cooling Fan" no obstructions on the blowing direction of the centrifugal fan, so have the same flow at various locations. While its air pressure and air volume adjustment range is bigger and better speed control effect. Negative impact and power axial fan like - high prices, big noise. Another solution "24V DC Cooling Fan" Wind blind approach is to change the fan out of the wind direction. Traditional radiator mounting airflow downward, i.e. perpendicular to the CPU. After improving the duct design, "24V DC Cooling Fan" to lateral hair, let the air flow direction parallel to the CPU.