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Noctua NF-S12B FLX 120 x ... has been added to your Cart
$29.99 + Free Shipping
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  • Noctua NF-S12B FLX 120 x 25mm Fan (600/900/1200 RPM)
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Noctua NF-S12B FLX 120 x 25mm Fan (600/900/1200 RPM)

by noctua

Price: $29.99 & FREE Shipping
In Stock.
Ships from and sold by Amamax (USA Seller).
  • Highly optimised impeller with Bevelled Blade Tips Thanks to its further refined blade geometry with extended leading edges and Bevelled Blade Tips, the NF-S12B achieves up to 10% more airflow and static pressure than its much acclaimed predecessor at the same noise level
  • 3 speed settings for full flexibility: Providing 1200, 900 and 600 rpm speed settings via the supplied Low-Noise and Ultra-Low-Noise Adapters, the FLX (Flexibility) version can be fine-tuned for superior airflow or maximum quietness.
  • Smooth Commutation Drive 2: The latest version of Noctua's advanced SCD drive system ensures superb running smoothness by eliminating torque variations and switching noises
  • SSO-Bearing: Noctua's time-tested SSO-Bearing technology has become synonymous with supremely quiet operation and exceptional long-term stability
6 new from $29.99

Frequently Bought Together

Noctua NF-S12B FLX 120 x 25mm Fan (600/900/1200 RPM) + Noctua NF-F12 PWM Cooling Fan
Price for both: $53.98

Buy the selected items together


Product Details

  • Product Dimensions: 5.1 x 5.1 x 1.2 inches ; 9.6 ounces
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • ASIN: B00276D4RG
  • Item model number: NF-S12B
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (41 customer reviews)
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Product Description

Succeeding the vastly successful NF-S12, the NF-S12B is a next generation quiet fan featuring Noctua's advanced SCD2 technology as well as a highly optimised blade geometry with Bevelled Blade Tips that improves its award-winning predecessor's airflow efficiency by up to 10%. Topped off with Noctua's time-tested SSO-Bearing, 6 years warranty and versatile 1200/900/600 rpm speed settings, the NF-S12B FLX is a premium quality fan that offers full flexibility in quiet to ultra-quiet case cooling.


Customer Questions & Answers

Customer Reviews

A nice, quiet fan.
Mark Rushton
Anyway this fan at full speed is extremely quiet and moves a large amount of air.
Michael SF
I own many Noctua fans and every time each product works better then attended.
FireDart

Most Helpful Customer Reviews

23 of 27 people found the following review helpful By Jetvart on December 10, 2010
Verified Purchase
The fan is heavier and more quiet then most others, also more expensive. If you buy this from Platinum Micro they'll mail you different little noisier model. And they don't accept returns without return authorization #, and don't respond to email, so you'll be stuck with it.
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6 of 6 people found the following review helpful By Psymn on July 7, 2010
Verified Purchase
I've gone to great lengths to silence my PCs, and these fans were the last ones I will ever have to buy, for two reasons.

1. They are nearly silent up close and undetectable from a few feet away.
2. One of my fans died an early death after 4 months, and Noctua quickly replaced it with a new one. No hassles at all, I simply filled out their web claim form, and attached a PDF of my reciept, and the new fan was on its way from Austria. I had the new one within 7 days of filing my claim.

The fans come with rubber mounts, and 3 speed adjusting cables. I'm not sure what type of electronics are in these cables, but each one will lower the fan's maximum RPM. I used the highest RPM cables and combined with my PC's fan management software I can hardly hear them.

These fans were so good that I replaced my CPU cooler with one from Noctua as well. The combination is wonderfully silent, and also does a great job of keeping my system cool. I have a i7-920 overclocked at 3.4ghz and idle temps are around 40C with heavy gaming loads around 60C.
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3 of 3 people found the following review helpful By Eric B. Wolf on January 22, 2012
Verified Purchase
If you care about fans in your computer, then this is a great choice. If you are saying "WTF would someone spend that much on a fan when I can just crank up the audio?" then save your money for the next release of Call of Duty: Modern Warfare 3.

The Noctua does a good job of moving air with negligible sound. This the tradeoff I am looking for - how little noise can I create and still maintain system performance. It does a much better job at moving air than the Scythe Slip Stream SY1225SL12SL 120mm 500 RPM Fan I added at the same time. Of course, the Slip Stream is also near silent but there's that trade off... The Slip Stream doesn't move enough air to really provide meaningful cooling. The Noctuas do.

I am trying to migrate my system to true silent operation. Currently, I am using a PC Power and Cooling Silencer Mk II 650W High Performance SLI CrossFire ready Power Supply compatible with Intel Sandy Bridge Core i3 i5 i7 and AMD Phenom PSU, a Corsair Cooling Hydro-Series All-in-One High-Performance Liquid CPU Cooler CWCH60], a PowerColor ATI Radeon HD5750 SCS3 1 GB DDR5 2DVI/HDMI/DisplayPort PCI-Express Video Card 1 GBD5-S3DH, an
...Read more ›
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1 of 1 people found the following review helpful By Shopalot on April 19, 2013
Verified Purchase
The price was right. For Noctua's that is. I bought 4 for 73.96 from Cool tech PC. I replaced 4 fans that came with my Cool@#master Cosmos case that were a couple years old. There was no difference in sound at all. Airflow dropped a little too as I cut down the rpm's. I expected a slight drop in noise just because the other fans were old and cheap. I'm also addicted to reviews and read enough about Noctua that I always wanted some. I'm sure they will last forever but I will never do that again. I was realistic in my expectations. But for my application four new 16 dollar fans did not perform any better than four, 3 year old 3 dollar fans. Ouch.
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1 of 1 people found the following review helpful By Michael SF on December 7, 2010
Verified Purchase
I know a computer fan is not very exciting but it is worth a quick review if it helps others. I installed this fan in my wine fridge since the one in there died. So my review might be a bit simpler than others. FYI these fans all have 3 pins and will work perfectly in a 2-pin setup, the 3rd wire (yellow) is just for feedback and completely optional.
Anyway this fan at full speed is extremely quiet and moves a large amount of air. Not sure what else you could ask for except maybe better colors.
So if your looking for a fan that goes into someplace you want to put it and forget about it (knowing its going to work) this could be your fan. The warranty and hour rating clearly makes this one of the longest lasting.
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Verified Purchase
I replaced the 4 80mm fans in a Norco 4224 case with 3 of these fans. It almost seems as though these were made for that purpose. These fans are great for high-pressure needs--like that of pulling air over the hard drives in a 24-bay case. Comes with adapter to reduce the RPMs, though even at full speed these things are remarkably quiet. Highly recommended, despite the somewhat high price tag.
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By RogueDeadGuy777 on March 17, 2014
Verified Purchase
You want quiet heat death? Quit wasting your time, these fans are sweeter than Swiss chocolate! Are you still reading? Don't be a fool, says this techie! Whether SOHO guru or budget gamer, you can't afford to miss this!
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