Specification: Item Type: Turbine Blower Material: Plastic Bearing Type: Double ball RPM: 4800±10% Rated Voltage: DC12V Current: 2.40 A Air Volume: 42.8CFM Wind Pressure: 62.4mmh2o Interface: Three pins Noise Value: Maximum 65.6db Wiring: (red positive electrode, black negative electrode), can be used after the two connected. Size: Approx. 97 x 97 x 33mm / 3.8 x 3.8 x 1.3in Weight: Approx. 177g / 6.2oz Package List:1 x Turbine Blower Note:Please allow 1-3cm error due to manual measurement. Thanks for your understanding. Features Maintenance-free double ball bearings, sufficient cooling air volume and pressure, and long service life of the turbo blower. The turbo blower is made of high-quality engineering plastic, which has a long service life and is not easy to be damaged. Turbo blowers can be used in indoor and outdoor communication base stations, data centers, network routers, control cabinets and network switches, elevator ventilation and motor drives. The ambient temperature is 25°C and the humidity is 45-85%. The turbo blower can be used for 100,000 hours. The turbo blower is easy to install, reliable in quality and stable in performance.