Noctua NF-A4x20 PWM - Premium Quiet Server Fan - Maldives

At the same time, a wide range of advanced aerodynamic design measures, second generation SSO-Bearing and Noctua’s new, custom designed PWM IC for fully automatic control assures astounding quietness of operation. Its commanding performance, exhaustive set of features and Noctua’s trusted premium quality make it an elite choice for use on air coolers, radiators and other pressure demanding applications. SSO2 bearing The NF-F12 is the first fan to feature the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability. Varying Angular Distance and Vortex Control Notches The NF-F12's stator guide vanes are set out in Varying Angular Distance and feature Vortex-Control Notches. Scope of Delivery NA-RC6 Low-Noise Adaptor (L.N.A) NA-YC1 4-pin PWM y-cable NA-EC1 30cm extension cable Premium quiet fan, 120x120x25 mm, 12V, 4-pin PWM, max. 1500 RPM, max. 22.4 dB(A), >150,000 h MTTF Award-winning 120x25mm fan with Focused Flow frame for high static pressure and superior quiet cooling performance Ideal for CPU heatsinks (e.g. Noctua NH-U12(S) series) and water cooling radiators, perfect replacement fan for loud all-in-one (AIO) coolers 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 300-1500rpm speed range (1200rpm max. with supplied Low-Noise Adaptor) Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header