Noctua G2 140mm Premium Quality Quiet PC Connection NF-A14x25 PWM, Fan, 4-Pin (Brown)

Next generation 140x25mm design delivers unprecedented quiet cooling performance in both high air volume and high static pressure applications: Ideal as a PC case fan for CPU coolers and water cooling radiators. State-of-the-art engineering (progressive bend impeller with winglets and centrifugal turbulators, flow acceleration channels, and AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance). 4-pin PWM version for automatic speed control with 4-pin PWM motherboard fan header. Speed range from 300 to 1500 rpm (nearly silent when idle, powerful under load), fan shuts off at 0% PWM (semi-passive option). Includes anti-vibration mount, 14cm anti-vibration gasket to tightly seal the radiator, fan screws, low noise adapter (LNA), extension cable, and Y-cable to run two PWM fans on the same header. Trusted Noctua quality with premium grade SSO2 bearings (MTTF＞ 150,000h). UL and TÜV safety certification. Protects against reverse polarity, overvoltage, and overcurrent (short circuit). Inheriting the award-winning NF-A14 and building on the breakthrough innovations of the NF-A12x25, the NF-A14x25 G2 is Noctua's next generation square frame 140mm flagship model. Made by Sterrox LCP. Progressive bend impeller with highly optimized winglets, flow accelerator. Acceleration Channel Combined with a centrifugal turbulator hub and tip clearance of only 0.7mm, the NF-A14x25 G2 further improves on its predecessor's renowned quiet cooling performance. Like the NF-A14 and NF-A12x25, it is a true all-rounder that produces excellent results in all types of use, whether in low-impedance, airflow-oriented applications such as case cooling, or scenarios requiring high-impedance static pressure such as heat sinks or water cooling radiators. For application-specific optimization, the NF-A14x25 G2 comes pre-installed with the NA-AVG2-LR anti-vibration gasket, which seals the radiator more tightly. In addition, AAO (Advanced Acoustic Optimization) The system can be combined with an optional NA-IS1-14 inlet spacer to help achieve superior suction acoustics and flow in difficult intake configurations. The 4-pin PWM version supports fully automatic speed control via PWM fan header and comes with a low noise adapter to reduce the maximum speed from 1500 to 1250rpm. The ultra-low-loss etaPERF motor with Smooth Commutated Drive 2 technology not only offers unprecedented energy efficiency and smooth running, but thanks to the SupraTork feature, additional torque headroom can be utilized to keep the fan at the desired speed when working against back pressure, further improving performance on heatsinks and radiators. Rounded out by Noctua's reference class SSO2 bearings, extensive accessory set, and 6-year manufacturer warranty, the NF-A14x25 G2 is a top quality product. Its superior performance, comprehensive feature set, cutting-edge construction, and cutting-edge materials set new standards for Noctua's portfolio, making it an elite choice for the most discerning demands. I am.