Noctua NF A8 PWM, Premium Quiet Fan, 4 Pin (80mm, Brown)

Amazon

Premium quiet fan, 80x80x25 mm, 12V, 4-pin PWM, max. 2200 RPM, max. 17.7 dB(A), >150,000 h MTTF Award-winning 80x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance 8cm format is ideal for compact PC cases (HTPC, ITX, Small Form Factor) and other chassis (intake & exhaust), replacement fan for NAS and other devices, etc. 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 450-2200rpm speed range (1750rpm 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

123-3D UK

Is your 3D printer, computer or other device making too much noise? Then Noctua fans offer a solution: it ensures that your device works whisper-quiet. These aerodynamic fans are popular for their robust, stable and above all quiet character. The fans are designed for optimal airflow. The grooves in the AAO frame allow air to be guided as efficiently as possible for the best cooling results. The integrated shock absorbers and SSO2 bearings reduce the noise level and ensure stability.This fan has a size of 80mm x 80mm x 25mm. The PWM variant has a variable rotation speed. With this fan you benefit from a six-year warranty.