Dimension 120 x 120 x 25 mm Speed (R.P.M.) 600 - 2000 RPM ? 10% Air Flow (CFM) 26.4 - 85.6 CFM ? 10% Air pressure (mmH2O) 0.75 - 3.53 mmH2O Noise 13 - 30 dBA Bearing Type Barometric Ball Bearing Fan Life Expectancy 100,000 hours Voltage 12 V DC Current (Ampere) 0.45A Max. Power consumption 6 W Max. Weight 127.8 g Connector 4 Pin Accessory Rubber screw x 4 Metal screw x 4 Rubber pad x 4 4-to-3 Pin adapter x 1 Note Please be careful of the sharp edges to avoid injury Barometric Ball Bearing (BBB) Technology Barometric Ball Bearing is a uniquely advanced technology to maintain barometric pressure in the center of the fan. The benefits of BBB fans are longer life expectancy than traditional bearing fans, lower noise level and higher reliability.