Be Quiet! BL047 Pure Wings 2 14cm Case Fan, Rifle Bearing, Black, Ultra Quiet Be Quiet! Pure Wings 2 14cm Case Fan   Outstanding Reliability And Silent Cooling     The Pure Wings 2 family fans are unique in itheir class, combining outstanding reliability, silent cooling, and a great price-for-performance ratio. It’s impressive how much quiet technology the German engineering team has crammed into these fans at this amazing price. They are the ultimate reason to put well-known be quiet! silent cooling in your PC if you haven’t already done so.     The Pure Wings 2 140mm model is the largest fan we offer that combines all of the above essential features. It provides maximum cooling airflow and operating noise levels down to a silent 18.8 dB(A). The increased air pressure makes the fans especially recommended for use in water cooling and air cooling setups. Practically Silent Operation     • Nine silence-optimized fan blades with high airflow capabilities reduce noise-generating turbulences while increasing air pressure     • Very quiet operation even at maximum speed, with noise of 18.8 dB(A) Product conception, design and quality control in Germany     • Perfect choice for Home and Office PCs, Gaming and Multimedia systems     • Especially recommended for use in water cooling and CPU cooling builds     • High-quality rifle bearing technology contributes to a very long lifespan of up to 80,000 hours     • Three year warranty     • Quick support is available via our international hotline ( 49 (0) 40 736 76 86 – 44), Mondays to Fridays from 0900 to 1730, German local time Specification Type: 14cm Case Fan AMD/Intel: N/A Compatibility: - Fan Connector(s): 3-pin Installation: Screw fixing #Hide#LED Lightin No Colour: Black Weight: 0.16 kg Fan Dimensions: 140 x 140 x 25 mm Fan Controller: No Rotation Speed: 1000 RPM Fan Bearin Rifle Bearing Air Flow: 61.2cfm / 104m3/h (@ 12V) Noise level: 18.8 dB(A) Power: Input: 1.08W Additional Features: See Overview Package Type: Retail Package Weight: 0.1900 kg Warranty: 3 Years