Sell Noctua Nf-A9 Pwm Computer Fan best price

Brand new company goods, starting price is the price, the price includes tax, 20 years old shop has a real market, buy and maintain security, welcome the market! Racquet and market are independent operations, prices are not in sync with the market, he first contact customer service personnel to confirm inventory, directly to the market will be sold at the market price, once the transaction in the market, do not accept the subsequent requirement to purchase or supplement subscript at the network price. Nf-a9 is an efficient mute 92mm fan, which, in addition to AAO advanced acoustic optimization fan frame with Noctua, is complemented by advanced aerodynamic designs, such as air flow acceleration channels, and NF-A9 does further improve the mute cooling performance of the award-winning NF-B9.The PWM version, which uses NE-FD1 to drive IC, can automatically control 4PIN fan connector, with a low-noise adapter that can reduce maximum speed from 2200RPM to 1750RPM under PWM control.The second generation sso 2 bearing system ensures its smooth operation and is the best choice for silent fan. Nf-b9 fan for honor (meeting The ward-winning NF-B9) Noctua NF-B9 fan has become the first choice for computer lovers to find high quality mute 80mm fan.Because of its excellent aerodynamic design, NF-A9 provides a higher static pressure and a better airflow/noise ratio than the previous generation's. Flow Acceleration Channels There are several airflow acceleration channels on the nf - A9 PWM blade.By accelerating the passage of airflow through a block of edge outside the fan, this measure reduces the side airflow separation, thus improving efficiency and reducing eddy current noise. Nf - A9 acoustic optimization fan Frame (NF - A9 AAO Frame) Noctua Advanced Acoustic optimization built-in shock pad, as well as Noctua-specific step intake design and inner surface microstructure, further improve fan performance/noise efficiency. Step intake Design The owl's ladder intake is an advanced aerodynamic design that converts smooth airflow to more irregular turbulence by adding this special design to the fan's inlet.This has a similar effect to the hole design on golf, which allows more airflow to flow between the fan frame and the fan leaf, allowing the fan leaf to breathe more air and improve the overall airflow efficiency.In addition to these aerodynamic advantages, step intakes are designed to reduce the noise generated by tonal intake into turbulence and generate more broadband noise distribution.In this way, the step intake design helps improve the sound quality of the fan, making it easier to incorporate background noise and make it more palatable. Inner microstructions The inner surface microstructure is an advanced aerodynamic design, which allows the blade to cut the airflow through the inner surface of the fan frame, and the airflow on the side of the fan blade is obviously suppressed, thus reducing the noise generated by the blade as it passes and effectivel