"220V Cooling Fan" for CPU cooler for cooling fin area and the density of the row determines the cooling effect, of course, there are also inseparable from the fan. It is behind the fan and cooling fins row, so they need big fan pressure penetration, in order to better heat away. The rear of the front panel of the chassis fan is responsible for providing the cold air inside the chassis. Most chassis panel consisting of at least one surf the web baffle design, "220V Cooling Fan" and the fan cage behind the hard bits. It requires a large pressure type of fan can blow through the front of the chassis, which will inject a steady stream of cold air inside the chassis. The inclination angle of the fan blades and blade curvature of the two factors that affect the value of a fan pressure in large city. "220V Cooling Fan" blade pitch angle and the greater the curvature values, at the same rotational speed, the greater the pressure supplied. This fan is particularly suitable for use in the front of the chassis, as the intake fan to use.