NF-S12A ULN:

A key selling point of the NF-S12A ULN is that it is slower and quieter right out of the box. With a maximum speed of 800RPM (600RPM with the included LNA adapter) it is ideal for case ventilation, but perhaps not a good choice for a CPU cooler.



The NF-S12A ULN's specifications are listed below, and more information can be found at the official product page on the Noctua site.

Specifications:

» Size 120x120x25 mm
» Connector 3-pin
» Bearing SSO2
» Blade Geometry S-Series with Anti-Stall Knobs
» Frame Technology AAO (Advanced Acoustic Optimisation)
» Rotational Speed (+/- 10%) 800 RPM
» Rotational Speed with L.N.A. (+/- 10%) 600 RPM
» Airflow 74,3 m³/h
» Airflow with L.N.A. 57,5 m³/h
» Acoustical Noise 8,6 dB(A)
» Acoustical Noise with L.N.A. 6,7 dB(A)
» Static Pressure 0,62 mm H2O
» Static Pressure with L.N.A. 0,44 mm H2O
» Max. Input Power 0,72 W
» Max. Input Current 0,06 A
» Voltage 12 V
» MTBF > 150.000 h
» Scope of Delivery:
   » Low-Noise Adaptor (L.N.A.)
   » 3:4 Pin Adaptor
   » 30cm Extension Cable
   » 4 Vibration-Compensators
   » 4 Fan Screws
» Warranty 6 years

The image below shows the fan still in it's case. I intend to swap the NF-S12A ULN with the NF-S12A FLX in the HTPC intake shown on the previous page. The ULN is much slower and quieter without adapters, so it would be an ideal candidate for that intake position where I needed the ULNA adapter on the NF-S12A FLX fan. The NF-S12A FLX will be a much better choice for cooling the HTPC's CPU, once I have replaced the stock Intel cooler with a heatpipe tower.