"Waterproof Cooling Fan" This performance parameter has a direct impact on the capacity of the fan. Within the allowable range, the larger the diameter of the fan, the greater the amount of wind, the greater the effect of surface wind. "Waterproof Cooling Fan" is usually reserved for position in the mainframe installation 8cm × 8cm axial fan. For this indicator, I think we should choose the fan diameter must be coordinated with your own computer chassis structure to ensure "Waterproof Cooling Fan" does not affect the normal operation of other equipment, and to ensure that the computer chassis has enough free space to facilitate the demolition other accessories.