b-BlasterPWM Series 140mm Speed(RPM): 600 to 3000RPM±10% Current(A): 1.0±0.1A Power(W): 12 Airflow(CFM): 168 Airflow (at zero static pressure for pwm): 28.2 Static Pressure (at zero flow for pwm): 1.4mmH20 Static Pressure (max for pwm): 7.0mmH20 Rated Voltage(V): 12 Operating Voltage Range(V): 10.2~13.8 Noise Level at Max Speed(dbA): 53 Operating Temperature: -10°C~70°C Storage Temperature: -20°C~75°C Frame Size(mm): 140x140x25 Weight: 255g Bearing: 2 Ball (Japanese ball bearing) PWM Connector Mini 4 pin 4 wires Life Expectancy: 60000 LED: None