With more than 100 recommendations and awards from international hardware websites and magazines, Noctua's flagship model NF-A12x25 has become an established reference for quiet 120 mm premium fans. Innovative aerodynamic design measures and an unprecedentedly narrow impeller gap of just 0.5 mm, made possible by the use of the new Sterrox liquid crystal polymer, ensure excellent results in all application areas: regardless of whether it is a question of flow rate-orientated applications with low dynamic pressure such as housing ventilation or pressure-orientated scenarios with high air resistance such as use on radiators and water cooling radiators. Thanks to PWM support and particularly low speed, the 4-pin LS-PWM version is ideal for semi-passive systems and silent applications that require virtually silent operation and PWM-based speed control. Its superior efficiency, pioneering design and uncompromising choice of materials make the NF-A12x25 a true premium product for the highest demands.