With the Silent Fan Series, you get a revised fan blade design and the use of extremely durable Rifle-bearings are the outstanding features of this newly developed silent fan series. The Cooltek Silent fans are ideal silent case fan for budget conscious users who are not willing to make compromises in quality. The speed can be adjusted at any time by means of a corresponding fan controller. The frame of the 80 mm Silent Fan is particularly stable and gives the fan high stiffness. In combination with the high-quality bearings, the fan produces therefore with very little vibration. Apart from the particularly high life expectancy the fan offers a very attractive price-performance-ratio.