The ARCTIC F Series is a high performance case fan for anyone looking for a quiet and efficient case fan.
Excalibur, as the name suggests, is inspired by the legendary sword of King Arthur from the middle ages. The nine massive sword-shaped blades are designed to produce exceptionally high air pressure, which fortify the cooling efficiency when used in dense water cooling radiators or performance heatsinks. This is the first fan from Cooler Master to adopt Barometric Ball Bearing (BBB) technology.
The unbreakable rule has now been broken. Cooler Master’s Turbine Master is the company’s latest 120mm high air flow fan that refutes the standard of “high air flow fan = loud”. Modeled after a strong turbine engine, the Turbine Master produces a strong air flow from an ingenious16-blade design and generates unsurpassed airflow combined with a circular semi-frameless design to maximize coverage and reduce noise. The Barometric Ball Bearing (BBB) can be easily removed to provide effortless cleaning and quick maintenance.
The WING UV Blue case fans are premium quality, UV reactive, ultra- quiet, dust and water proof cooling fans for gaming enthusiasts. This series features a unique bearing with patented design, winglet fans blades and low starting voltage. Only the highest quality materials have been used to manufacture this state-of-the-art cooling fan. Control the fan RPM speed according to your desire using the supplied voltage regulator. To add to the silence, fan mounts replace traditional screws and are made of high quality, ultra-soft silicone, which stop vibrations from the fan motor from traveling into your PC case.
Nanoflux Bearing (NFB)
Patented Nanoflux bearing incorporates a clever magnetic design, very high-precision manufacturing, runs friction-free and operates noiselessly. Electromagnetic fields are exploited to keep solid parts from touching. The load is carried by a magnetic field.
Nanoflux Bearing (NFB) compared to sleeve and ball bearings
Even though conventional sleeve and ball bearings currently dominate the fan market, both have their disadvantages. While sleeve bearings have very low-noise emissions and are very cost effective, they tend to leak oil. Once the oil has dissipated, the fan can no longer operate. Ball bearings, on the other hand, while providing longer operating life, are costlier, noisier and are prone to damage. GELID’s Nanoflux bearing uses magnetic flux to limit contact and friction between the bearing and the shaft. High precision self-lubricated material eliminates oil leakage. The result is a ultra quiet, long-life bearing.
Fan Speed Control
The RPM speed of any fan can be controlled from full speed to low speed manually, according to desire, by using this voltage regulator. This product is suitable for all high RPM fans and regulates between 5 and 12V.
Designed for superior performance in pressure demanding applications such as heatsinks and radiators, the Focused Flow™ frame features eleven stator guide vanes that straighten, channel and focus the airflow, which allows the NF-F12 to rival the performance of conventional fans running at much faster speeds. The NF-F12’s stator guide vanes are set out in Varying Angular Distance and feature Vortex-Control Notches. Both measures help to spread the noise emission over a broader frequency spectrum and thus make the fan’s sound pattern more agreeable to the human ear.
Inner Surface Microstructures are an advanced aerodynamic design measure first introduced with Noctua’s NF-F12 fan. Miniature dents at the inside of the fan frame create a turbulent boundary layer when the fan blades pass by. With the tips of the fan blades plowing through this boundary layer, flow separation from the suction side of the blades is significantly reduced. As suction side flow separation is a major source of axial fan blade passing noise and leads to considerable losses in airflow and pressure efficiency, the use of Inner Surface Microstructures allows for lower noise emission and better performance at the same time. Reducing undesired turbulences caused by suction side flow separation, Inner Surface Microstructures help Noctua’s latest fans to keep pushing the boundaries in performance to noise efficiency.
Moving over the stator guide vanes, the fan blades create pressure pulses. This type of rotor-stator interaction significantly contributes to the fan’s overall noise emission. With a uniform distribution of the stator vanes, the relative geometrical constellation of the rotor blades and the stator guide vanes is identical each time the rotor moves over the next stator vane. This means that each time a stator vane is passed by a rotor blade, the same pressure pulses are created. Acoustically, these periodic pulses lead to noises at distinct frequencies and manifest themselves as frequency spikes in the fan’s acoustic spectrum, giving it a more tonal and distinguishable character. To avoid this phenomenon, the NF-F12’s stator guide vanes are set out in Varying Angular Distance (between 31° and 37°). Due to this measure, the geometrical situation between the rotor and the stator parts is slightly different each time the rotor moves over the next stator vane, which results in aerodynamically different pressure pulses and hence spreads the noise emission over a broader frequency range. Producing a less tonal and more broadband acoustic profile, the VAD stator guide vanes make the fan more agreeable to the human ear and let it blend into the background noise more easily.