Noctua NF-A12x25 ULN fan

The NF-A12x25 is a highly optimized 120 mm fan of the next generation, setting new benchmarks in silent cooling performance thanks to innovative aerodynamic design measures. It combines groundbreaking Noctua technologies such as the AAO (Advanced Acoustic Optimization) frame and Flow Acceleration Channels with an unprecedentedly narrow impeller gap of just 0.5 mm. The manufacturing precision required for this is ensured by the use of the new Sterrox liquid crystal polymer and metal reinforcements at the hub and shaft mount. In line with Noctua's A-series concept, the NF-A12x25 is a true all-rounder that delivers excellent results across all application areas—whether for airflow-oriented applications with low static pressure like case ventilation or pressure-oriented scenarios with high air resistance such as use on coolers and water cooling radiators. The 3-pin ULN version offers extra-low speeds (1200/900 rpm) for ultra-low-noise applications and particularly noise-sensitive users who want to achieve near-silent operation. Its superior efficiency, forward-thinking design, and uncompromising material choice make the NF-A12x25 a genuine premium product for the highest demands.