NOCTUA NF-B9 PWM

Fan Noctua NF-B9 PWM is the successor to the highly popular model that helped create cutting-edge products listed brand reputation. Users still particularly appreciate its quiet operation combined with high cooling performance. The new version includes a special PWM control company Noctua, which provides automatic speed control at very low power consumption. The fan is also equipped with high-end SSO bearings, which provide unprecedented median uptime in excess of 150,000 hours (17 years!).

Bevelled Blade leaves + Vortex-Control notches
Tapered leaf blower can combine a larger area of \u200b\u200bthe blades at a lower acoustic noise emitted and thus increase its overall efficiency. Special notches then divide the ends of leaves in two and cleaves the noise generated on a wider range of frequencies, making it more pleasant to the human ear.

Innovative PWM control IC with SCD
Noctua NF-B9 PWM supports fully automatic speed control. Its main advantage is the smooth transmission system control pulses (Smooth Commutation Drive - (SCD)), which eliminates unwanted jumps and delivers quieter operation especially at lower rotation speed. The fan is additionally supplied with a resistance Low-Noise Adaptor (LNA) to reduce the maximum speed of 1600 to 1300 rev/min. The resistance can be used both for fixing speed 1300 rev/min and a reduction of the maximum speed 1300 rev/min.

Extensive support connection
The fan is equipped with a short cable with a length of twenty centimeters. Using the supplied extension cable 30centimetrového, but connect it to almost any large enclosure. Both cables are fully braided and Y structure allows to connect a second NF-B9 PWM to the same header for automatic speed control.

SSO bearings
Integrated SSO system combines the proven concept of hydrodynamic bearings with an additional magnet that supports self-stabilization of the rotor axis, flights proven proprietary bearing Noctua will provide extremely quiet operation and excellent long-term stability.

Specifications:

Base:
Bearing: SSO (self-stabilizing oil-bearing)
The geometry of the blades: NF-B9
Speed \u200b\u200b(alone/with LNA): 1600/1300 rpm/min.
Minimum speed: 300 rpm/min.
Airflow (self/s LNA): 64.3/52.6 m3/h
Noise (self/s LNA): 17.6/13.1 db (A)
Static pressure (self/LNA s): 1.61/1.09 mmH2O
Max. power consumption: 0.96 W
Max. Current consumption: 0.08 A
Voltage: 12 V
MTBF:> 150,000 hours

Design:
Dimensions: 92 x 92 x 25 mm
Connector: 4 pin with PWM control

Standard packaging:
Low-Noise Adapter (LNA)
4-pin Y-cable
30 cm extension cable
4 vibration compensators
4 fan screws