This Nexus 120mm White LED case fan is the quietest available, at a truly silent 18 dB(A). It provides ample airflow without being noticeable noise wise. The Nexus 120mm Silent Case Fan is equipped with a 4-pin power connector and a 3-pin motherboard connector. This allows you to connect the case fan directly to the power supply or to the motherboard. Power Connector 4-pin & 3-pin Dimensions 120x120x25mm Rated Voltage 12 Volts Operation Voltage 6.5 ~ 13.8 Volts Input Current 0.30 Amp Max Input Power 1.8 Watts Max Rotation Speed 1000 RPM Acoustic Noise 18 dB(A) Airflow 36.87 CFM Operation Temperature -10 to +65 C Storage Temperature -40 to +70 C LEDs 4x White Manufacturer's Warranty 3 Years