"220V AC Cooling Fan" choose a suitable fan is not difficult, using a fan inside the chassis is undoubtedly the two, one is one is the amount of wind pressure. Large wind pressure fan for CPU and chassis front panel and is equipped with an air filter and a hard disk rack chassis. Winds of fan or rear of the chassis for the top position, so you can rule out the heat, does not cause heat accumulation. Regardless of the design method on the blades, ultimately only one purpose: to reduce the shock factor blades rotating at high speed with the air friction, "220V AC Cooling Fan" Let the fan and the air contact area airflow more smoothly. The bearing design is the same, only in order to reduce the coefficient of friction between the media to play a muted effect. Players toss for those less love, a more balanced overall performance, excellent acoustics of the fan is a good choice. "220V AC Cooling Fan" At present, many manufacturers to make their products mute the effect is more prominent fan in the fan bearing types and design are under a lot of effort. This flagship mute the effect of the fan can be installed in various locations inside the chassis.