NF-A14 FLX:

The NF-A14 FLX is like the big brother of the NF-S12A FLX considering the performance and inclusion of both an LNA and ULNA to drop the speed/noise down even lower. With this 140mm unit, your speed options are 1200RPM, 1050RPM, and 900RPM. The specifications for this fan are listed below, and more details can be found on the official product page on the Noctua website.

Specifications:

» Size 140x140x25 mm
» Connector 3-pin
» Bearing SSO2
» Blade Geometry A-Series with Flow Acceleration Channels
» Frame Technology AAO (Advanced Acoustic Optimisation)
» Rotational Speed (+/- 10%) 1200 RPM
» Rotational Speed with L.N.A. (+/- 10%) 1050 RPM
» Rotational Speed with U.L.N.A. (+/- 10%) 900 RPM
» Airflow 115,5 m³/h
» Airflow with L.N.A. 101,9 m³/h
» Airflow with U.L.N.A. 88,7 m³/h
» Acoustical Noise 19,2 dB(A)
» Acoustical Noise with L.N.A. 16,4 dB(A)
» Acoustical Noise with U.L.N.A. 13,8 dB(A)
» Static Pressure 1,51 mm H2O
» Static Pressure with L.N.A. 1,18 mm H2O
» Static Pressure with U.L.N.A. 0,89 mm H2O
» Max. Input Power 0,96 W
» Max. Input Current 0,08 A
» Voltage 12 V
» MTBF > 150.000 h
» Scope of Delivery:
   » Low-Noise Adaptor (L.N.A.)
   » Ultra-Low-Noise Adaptor (U.L.N.A.)
   » 3:4-Pin Adaptor
   » 30cm Extension Cable
   » 4 Vibration-Compensators
   » 4 Fan Screws
» Warranty 6 years

The next image shows the NF-A14 FLX with its accessories still in the plastic case.



The next two images show the NF-A14 FLX installed in the intake position of a Bitfenix Prodigy based HTPC system. The ULNA was installed on the fan, as well as the included 3-pin to 4-pin adapter since the system's miniITX motherboard only offers two fan headers which are being used by the CPU and exhaust fan. Without the adapter installed on the NF-A14 FLX, I will say it was a bit loud, but with the ULNA it was nearly silent and definitely acceptable for an HTPC.