Case cooling is becoming more essential these days. The better airflow inside your system, the cooler and more stable system you will get. Air Flow (CFM) - 39.77CFM Air Pressure (mmH2O) - 1.52 mmH2O Noise (dB-A) - 19.3 dB-A Weight (gram) - 120 g Color - 4 BLUE LED Bearing Type - Sleeve Life Expectancy - 30,000 hours Connector - 3 pin Screws - 4 pcs Warranty Length - One year manufacturer warranty