Case cooling is becoming more essential these days. The better airflow inside your system, the cooler and more stable system you will get. 24.2 CFM Higher airflow to enhance cooling performance. Silent operation at 20 dB-A for excellent case cooling. RoHS compliance for protecting the environment. Its Dimension 80*80*10mm Voltage 12VDC Current (Ampere) 0.12A Input (Watt) 1.44W Speed (R. P. M. ) 2000 R. P. M. ± 10% Air Flow (CFM) 24.2 CFM Air pressure (mmH2O) 1.43 mmH2O Fan Noise Level (dB-A) 20 dB-A Weight 45 g Bearing Type Sleeve Fan Life Expectancy 35, 000 hours Connector 3 pin Screws 4 pcs 3 to 4 pin Adapter 1 pcs