The Pure Wings 2 80mm fans bring famous be quiet! silent cooling to entry level computing, yet are also appropriate for gaming and multimedia systems. The most important features include: Seven airflow-optimized fan blades that reduce noise-generating turbulence Long life rifle-bearing gives an operating lifetime of 80,000 hours Even at maximum speed, operates at only 18.2dB(A) Product conception, design and quality control in Germany Pure Wings 2 80mm fans offer outstanding reliability and quiet operation at great price-for-performance ratio. They are the ultimate reason to put the well-known be quiet! silent cooling in your PC. VERY QUIET OPERATION Achieves a great price-for-performance ratio