Case cooling is becoming more essential these days. The better airflow inside your system, the cooler & more stable system you will get. Features 50, 000 long life hours. 19 d B-A Silent application for CPU cooling. Ro HS compliance for protecting the environment. Recommended for Hyper 212, Hyper Z600, Gemini, Cosmos & Cosmos S. Specifications Dimension (W / H / D) 120*120*25mm Voltage 12VDC Current (Ampere) 0.35A Input (Watt) 4.2W Speed (R.P.M.) 2000 R.P.M. Air Flow (CFM) 69.69 CFM Air pressure (mm H2O) 2.94 mm H2O Fan Noise Level (d B-A) 19 d B-A Weight 116 g Bearing Type Long Life Sleeve Fan Life Expectancy 50, 000 hours Connector 3 pin Screws 4 pcs 3 to 4 pin Adapter 1 pcs