1. Press "Tiny Cooling Fan" operating voltage min: AC cooling fan (AC FAN); DC cooling fan (DC FAN)
2. Press the cooling fan drive motor Score: brushless DC fan (DC BRUSHLESS FAN); there are brush DC cooling fan (DC BRUSH FAN); brushless AC cooling fan (AC BRUSHLESS FAN).
3. Press "Tiny Cooling Fan" motor bearing system is divided into: oil bearing type (SLEEVE BEARING); ball-type (BALL BEARING); ceramic nano bearing type (CERAMIC NANOMETER BEARING).
4. Press the steam flow direction of the point: axial flow type "Tiny Cooling Fan" (AXAL FAN); centrifugal type fan (BLOWER FAN); cross-flow fan (CROSS FAN).