Noctua 120MM NF-S12B FLX 1200-900-600RPM

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 versatile 1200/900/600 rpm speed settings, the NF-S12B FLX is a premium quality fan that offers full flexibility in quiet to ultra-quiet case cooling.

More information:
NF-S12B Blade Design
NF-S12B & NF-P12: Technical Backgrounds
Which fan is right for me?

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

Specifications:
Size  120x120x25 mm
Bearing  SSO-Bearing
Blade Geometry  NF-S12B Blade Design with BBT 
Rotational Speed (+/- 10%)  1200 RPM
Rotational Speed with L.N.A. (+/- 10%)  900 RPM
Rotational Speed with U.L.N.A. (+/- 10%)  600 RPM
Airflow  100,6 m³/h
Airflow with L.N.A.  75,8 m³/h
Airflow with U.L.N.A.  49,2 m³/h
Acoustical Noise  18,1 dB(A)
Acoustical Noise with L.N.A.  10,6 dB(A)
Acoustical Noise with U.L.N.A.  6,2* dB(A)
Static Pressure  1,31 mm H2O
Static Pressure with L.N.A.  0,76 mm H2O
Static Pressure with U.L.N.A.  0,34 mm H2O
Input Power  1,2 W
Input Current  0,1 A
Voltage Range  12 V
MTBF  > 150.000 h

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

More info:
http://noctua.at/main.php?show=productview&products_id=25&lng=en&set=1