Be quiet fans now offer the well-known Pure Wings 2 in four models sizes with 80, 92, 120 and 140 millimeter available. The Pure Wings 2 are very consistently trimmed for maximum quietness and convincing cooling performance. The fan blades have a flow-optimized surface structure, which helps to achieve a quieter airflow. Nine fan blades increase airflow and provide increased air pressure with an impressively quiet operation.The Pure Wings 2 140mm high-speed fan brings exceptional be quiet! cooling to entry level computing. The extremely high air pressure makes it a perfect choice for powerful water- and air-cooled systems. The most important features include:Features- Nine airflow-optimized fan blades that reduce noise-generating turbulence while increasing airflow- A long-life rifle bearing that contributes to an operating lifetime of 80,000 hours - Even at maximum speed, operates at only 36.3 dB(A)- A fan speed of 1,600 rpm for extremely high air pressure- Especially recommended for use in water cooling and CPU cooling builds- Product conception, design and quality control in Germany- 3-year manufacturers warranty- Pure Wings 2 high-speed fans offer outstanding reliability and solid cooling for a great price-performance ratio. Specification:- Model: Pure Wings 2 140mm High-Speed- Dimensions (mm): 140- Fan speed @ 12V (rpm): 1600- Air flow @ 12V (cfm / m3/h): 94,2 / 160- Air pressure @ 12V (mm H2O): 1,62- Noise level @ 12V (dB(A)): 36.3- Dimensions (L x W x H), (mm): 140 x 140 x 25- Bearing technology: Rifle- Motor technology: 4-pole fan motor- Weight incl. fixed cables (kg): 0,13- Connector: 4-Pin- Cable length (mm): 460- Warranty: 3 Years