PRICES MAY VARY. Size:90x90x25mm (3.62X3.62X0.98inch);noise level:37.5dBA;speed:3000RPM. Feature:Good heat dissipation, large air volume. safe and tasteless,simple operation. Low friction,low noise and high efficiency. 2Pin Wiring:With 2-pin XH2.54 connector, red wire positive, black wire negative;length 30 cm(12 inches),confirm the interface is suitable for your device. Application: It is useful in life and can be applied in RV references, drive towers,space heaters,small solar panels,wine cool