The PWM version is equipped with Noctua's specially designed NE-FD1 IC for fully automatic speed control and comes with a low-noise adapter that allows the maximum speed to be reduced from 1,500 to 1,200 rpm. pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 300-1500rpm speed range (1200rpm max.

Both cables are fully sleeved and a 4-pin y-cable allows to connect a second NF-F12 fan to the same PWM fan header for automatic control. This means that it is not only highly dust resistant but also withstands dripping water equivalent to 3mm rainfall per minute. This problem also occurs if you try to use an in-line fan speed controller such as the one made by Gelid. If I can ever get some more 140mm case fans together -- think Corsair, Deepcool, Phanteks, Thermaltake, etc.Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). This material can withstand temperatures up to 140°C and makes the fans even more robust and break-proof than Noctua’s standard fibre-glass reinforced PBT fans.

Several models are available now which provide 4-pin fan headers, so this is an easy way to use 4-pin PWM fans in a PC system which has only 3-pin fan headers on its motherboards. Although there's plenty of choice, most mobos have a red and black colour scheme, exactly the opposite of my colour scheme of white and blue (and black). Thanks to a special varnish coating that covers the motor and PCB, the NF-A14 industrialPPC complies with the ingress protection rating IP52.

For even greater cooling performance on current high-end CPU coolers, the width has been extended to 150 mm and complemented by advanced aerodynamic design measures such as Flow Acceleration Channels, which again improve the silent performance. I use it on a 140mm radiator and under 1000rpm its silent and at full speed it moves a tone of air through the radiator with decent noise levels. The only downside is their colour scheme but If you're like me and prefer function over form, you can't get any better. The NF-A14 industrialPPC features the further optimised second generation of Noctua’s renowned, time-tested SSO bearing. Inside the box, there are multiple connections, to reduce fan speed, to extend the cable, or a two way adapter.