větrák Coolermaster Blade Master 120x120, sleave bearing, 13dBA, PWM function Dimension 120 x 120 x 25 mm Speed (R.P.M.) 600 - 2000 R.P.M. Air Flow (CFM) 21.2 - 76.8 CFM Air pressure (mmH2O) 0.40 – 3.90 mm H2O Noise 13 - 32 dBA Bearing Type Long Life Sleeve Fan Life Expectancy 40,000 Hours Voltage 12 V Current (Ampere) 0.36A Max. Power consumption 4.32 W Max. Weight 166 g Connector 4 Pin Screws 4 pcs Rubber 4 pcs http://www.coolermaster.com/product.php?product_id=6622