"24V DC Cooling Fan" also adding a unique dust-proof characteristics, the characteristics obtained a patent certification, can guarantee an ideal cooling power while, "24V DC Cooling Fan" can also be possible to avoid dust and other impurities into the external power supply, affect its safe operation. Meanwhile, the temperature inside the power supply at the same time self-built circuit, according to the operating temperature of the core elements, real-time adjustment "24V DC Cooling Fan" speed, intelligence reached to balance cooling and quiet, to further improve the user's DIY environment.