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.

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.

2 speed settings for maximum quietness
Providing 700 and 500 rpm speed settings via the supplied adapter, the ULN (Ultra-Low-Noise) version is tailor made for serious silent enthusiasts who demand super-slow running speeds and utmost quietness of operation.

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.

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

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)
Acoustical Noise with U.L.N.A.: 5* dB(A)
Static Pressure: 0,44 mm H2O
Static Pressure with U.L.N.A.: 0,23 mm H2O
Input Power: 0,6 W
Input Current: 0,05 A
Voltage Range: 12 V
MTBF: > 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