Noctua>Fan>NF-S12B ULN

FAN Specification

Size :                                                               120x120x25 mm
Bearing :                                                          SSO-Bearing
Blade Geometry :                                             NF-S12B Blade Design with BBT
Rotational Speed (+/- 10%) :                           700 RPM
Rotational Speed with U.L.N.A. (+/- 10%) :     500 RPM
Airflow :                                                           56,9 m³/h
Airflow with U.L.N.A. :                                     38,2 m³/h
Acoustical Noise :                                            6,8 dB(A)
Static Pressure :                                              0,44 mm H₂O
Static Pressure with U.L.N.A. :                        0,23 mm H₂O
MTTF :                                                              > 150.000 h

Scope of delivery :                                           Ultra-Low-Noise Adaptor (U.L.N.A.)
                                                                         4 Vibration Compensators
                                                                         3:4-Pin Adaptor
                                                                         4 Fan Screws
Warranty :                                                        6 years

Information Sheet (PDF)

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Highly optimised impeller with Bevelled Blade Tips
Thanks to its further refined blade geometry with extended leading edges and Bevelled Blade Tips, the NF-S12B achieves up to 10% more airflow and static pressure than its much acclaimed predecessor at the same noise level.

3 speed settings for full flexibility

Providing 1200, 900 and 600 rpm speed settings via the supplied Low-Noise and Ultra-Low-Noise Adapters, the FLX (Flexibility) version can be fine-tuned for superior airflow or maximum quietness.

Smooth Commutation Drive 2

The latest version of Noctua's advanced SCD drive system ensures superb running smoothness by eliminating torque variations and switching noises.


Noctua's time-tested SSO-Bearing technology has become synonymous with supremely quiet operation and exceptional long-term stability.


 ​NF-S12B ULN​ 

Product discontinued. Successor model: NF-S12A ULN

Succeeding the vastly successful NF-S12, the NF-S12B is a next generation quiet fan featuring Noctua's advanced SCD2 technology as well as a highly optimised blade geometry with Bevelled Blade Tips that improves its award-winning predecessor's airflow efficiency by up to 10%. Topped off with Noctua's time-tested SSO-Bearing, 6 years warranty and super-slow 700/500 rpm speed settings, the NF-S12B ULN is a premium quality fan for ultra-low-noise applications where maximum quietness has top priority.