Specifications, Availability and Pricing
On the very basic level the NF-F12 is just a 25mm thick 120mm fan like most others. It rides on a SSO2 bearing with a metal shell. When the 4-pin fan header is connected to the motherboard, the NF-F12 uses a NE-FD1 PWM sensor to determine the fan speed for the temperature reading from the motherboard. The fan can spin with a rotational speed of up to 1500 RPM delivering 93.4 cubic meters of air through the fan per hour. For you who only know it by CFM, that is roughly 55 CFM. Pushing 2.61mm of water in static pressure while only registering 22.4 dBA isn't anything to pass up either. While the maximum voltage is set for 12V they do take only 5V to get them rotating, where previous Noctua fans took a little bit more to power them up.
On the more advanced level the NF-F12 PWM offers things that go above and beyond in fan design. There is something called Focused Flow that uses eleven stators to direct airflow through even the most demanding of cooling situations such as being bolted to a radiator. These stators are also designed with noise in mind so they are angled for the best flow to noise ratio possible. The blades of the fan use a Heptaperf impeller design that is specially designed to work with the stators to get all of that 55 CFM potential out of this fan.
Things like the stepped inlet and microstructures on the inside of the frame all work to disturb the air coming in so that it doesn't "just slide by" it is pulled into the impeller and utilized as far as technologically possible in this fan. There is a lot more involved as well, but I need to save some of the juicy information and features for the rest of the review.
As far as the availability of the NF-F12 PWM fans, I found over twenty listings via Google Shopping, so there are plenty of choices to locate these fans. As far as the pricing goes, well that depends on how brave you are. On the low end of the spectrum I found the NF-F14 at an Amazon web store for $19.93 through Cool Tech PC. For the less adventurous sorts out there be prepared to spend a fair bit more per fan. Looking at Amazon.com the fans are $23.79 and my personal favorite, Newegg, currently isn't even showing stock of these newest fans from Noctua.
In the end you just have to be prepared, excellence and quality components come at a price and from what I have seen of others, $20 a fan is really good for a fan that offers a six year warranty.
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