Mass-media company Noctua announces release of new low-noise fan NF-S12B FLX and NF-S12B ULN size 120 x 120 x 25 mm, which are improved versions of excellent proven propeller NF-S12 Series. As noted in the published official report, new items are different from predecessors, increasing the length of the front edges of the blade and the availability of special chipping at its end. Taken together, these changes, according to the developers to improve performance of products by 10% without significantly increasing the level established during their working noise. Model NF-S12B FLX through the use of adapters can run at speeds of 600, 900 or 1200 revolutions per minute. This air flow is changed from 49, 2 to 100, 6 cubic meters per hour, and the noise level ranges from 6, 2 to 18 1 dB. In turn, changed NF-S12B ULN is able to operate at a speed of 500 or 700 revolutions per minute. Depending on the mode of the fan pump 38, 2 to 56, 9 cubic meters of air per hour, while the noise level is in the range of 5 to 6, 8 dB. In both beginners using Self hydrodynamic bearings with a magnetic suspension, which are calculated at 150, 000 hours of trouble. Being confident in the reliability of the site, the manufacturer offers its products to six quality assurance. The above solutions are already available for purchase at a price of 20 euros.