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Noctua NF-S12B ULN 120mm Ultra Quiet Cooling Fan 500-700RPM 38.2-56.9M3/H 5.0-6.8 dbA Molex

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Noctua NF-S12B ULN 120mm Ultra Quiet Cooling Fan 500-700RPM 38.2-56.9M3/H 5.0-6.8 dbA Molex - 1
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Noctua NF-S12B ULN 120mm Ultra Quiet Cooling Fan 500-700RPM 38.2-56.9M3/H 5.0-6.8 dbA Molex - 38381_l.jpg Noctua NF-S12B ULN 120mm Ultra Quiet Cooling Fan 500-700RPM 38.2-56.9M3/H 5.0-6.8 dbA Molex - 38381_1.jpg Customer Photos (0)
Reg. Price: $23.98  CAD
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Part #: NF-S12B-ULN

SKU: 38381
Shipping Weight: 0.4 lbs
Shipping estimated: $5.99 *
*Via ncix selected courier.

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Customer Reviews of Noctua NF-S12B-ULN

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Noctua NF-S12B-ULN reviews.
Experience: 1 Months


Quiet and efficient, comes with metal and rubber screws
Function over form is clearly Noctua's game and it shows. Brown on beige is ugly in pretty much any case. I was going for a cohesive design inside and out, but I wanted the best quiet fans so that threw things off. Other than that I have no gripes because...

These fans are the best. Quality costs money and you can hear where your money went with these.

Efficient airflow, but most importantly, QUIET. I have my desktop for audio production so quiet is a priority. These are literally the quietest case fans money can buy. If that's what you're after, don't even bother with anything else. Seriously, they're that good.

Experience: 1 Years


In 2 pack bundle price is more decent
Great product
Not a real Cons but not a "big" air performer, see summary
This fan are nice pieces or ART
They are very good if you don't need lot of air and no noise. Low wattage pc is perfect. In my principal one, I use 2 of them in my pc and 1 Noctua 14mm in a Lian LI and it is near limit in full cpu gpu load but works perfectly (i3 3100 3.1 wt Corsair A70 and Gigabyte 6770 all both passive)

I also use it in Small pc like Sonata III with dual core low consumption. I put passive heatsink on cpu and let the airflow doing the job by the Noctua (back fan on the case).

Noctua is very nice product. Never had a single problem with their fan over the last 4-5 years.

Experience: 1 Weeks


Very Silent exellent flow rate
very silent and performent fan replacing my SilentX that started doing some noise after 1 year of use !!

Experience: 2 Months


Very Quiet, Well made, Warranty 6 yrs,
Bought these for use as case fans, and needed them to be Quiet! they are definatly very Quiet. You can't go wrong with Noctua fans. They just pull enough are out of my case to keep the air flowing. They are rather expensive but well worth the money spent!

Dr Foo
Experience: 1 Months


Nice and quiet!
Looks... But it's Noctua!
If you're looking for a side panel fan, this puppy is your fan!

I picked up 2 of those and as a duo, they did a nice job of moving just enough air (remember, this is for the side panel of my case) and keeping it quiet while doing it.

No complaints at all!

Experience: 5 Months


Working as intended
A little bit expensive?
A "quiet" fan is subjective. But it's perhaps one of the quietest I've had so far. I'll probably check for other fans next time. I heard of some good ones for a little bit cheaper

This review was modfied by poster @ 01-28-12 05:18 PM

The Great Gazoo™
Experience: 30 Days


Very quiet on low mode
Good performance on high if needed
Ugly color scheme
I got one of these for an older case that had 1 for exhaust. I built a WHS box so didn't need a lot of airflow due to lower temps. I did require the fans to be very quiet since the server box is on all the time and in an area that is exposed. On the low voltage mode it is virtually silent, just a very very faint noise is audible. I highly recommend them for a silent build such as the one I did.

Experience: 2 Weeks


Quiet, Unique Design (Very Noticeable, in a good way) Strong
None? Rubber grommets included are kind of standard... Would've preferred silicone grommets. (But not much of a matter, just picking at things.)
Great fan. I bought two of these to replace teh stock fans on my Corsair H70.

I have them with the Ultra-Low adapters... They do what they were meant to do, and they do it well.

Experience: 60 Days


Silent, superb build quality.
This fan is slightly under power in terms of air pressure or air velocity, but enough to feed fresh cool air for most PC setups.
This fan is superb in build quality and ultra quiet. This is without any doubt the quietest component among those moving ones inside my case.
When it comes to fans, I always go with Noctua.

Experience: 2 Years


very quiet
good air flow
seems quite robust
have lasted since i bough it
maybe the brown color?
these fans are very quiet, they look kinda of weird, but they perform, i use these and nexus fans only, and its maybe little quieter than the nexus, but still impressive in my opinion

Product Videos [ Edit ]

Features [ Edit | History ]

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 super-slow 700/500 rpm speed settings, the NF-S12B ULN is a premium quality fan for ultra-low-noise applications where maximum quietness has top priority.

More information:
button  NF-S12B Blade Design
button  NF-S12B & NF-P12: Technical Backgrounds
button  Which fan is right for me?

BBT 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. button

uln 2 speed settings for maximum quietness
Providing 700 and 500 rpm speed settings via the supplied adapter, the ULN (Ultra-Low-Noise) version is tailor made for serious silent enthusiasts who demand super-slow running speeds and utmost quietness of operation.

SCD 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. button

SSO SSO-Bearing
Noctua’s time-tested SSO-Bearing technology has become synonymous with supremely quiet operation and exceptional long-term stability. button

Specifications [ Edit | History ]

Size 120x120x25 mm
Bearing SSO-Bearing
Blade Geometry NF-S12B Blade Design with BBT
Rotational Speed (+/- 10%) 700 RPM
Rotational Speed with U.L.N.A. (+/- 10%) 500 RPM
Airflow 56,9 m³/h
Airflow with U.L.N.A. 38,2 m³/h
Acoustical Noise 6,8* dB(A)
Acoustical Noise with U.L.N.A. 5* dB(A)
Static Pressure 0,44 mm H2O
Static Pressure with U.L.N.A. 0,23 mm H2O
Input Power 0,6 W
Input Current 0,05 A
Voltage Range 12 V
MTBF > 150.000 h
Scope of Delivery 
  • Ultra-Low-Noise Adaptor (U.L.N.A.)
  • 4 Vibration Compensators
  • 3:4-Pin Adaptor
  • 4 Fan Screws

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Messages about Noctua NF-S12B ULN 120mm Ultra Quiet Cooling Fan 500-700RPM 38.2-56.9M3/H 5.0-6.8 dbA Molex

Can you mount these fans horizontal(flat)? (Scott_S- Jan 19, 12, 2 Replies)

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Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.

Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: Includes a performance test of the fan with and without the ulna.
Posted by: Andrew_L @04/16/10
Comment: APH Networks reviews the Noctua NF-S12B ULN and NF-S12B FLX.
Posted by: chconline @08/29/09
Submit a review link   |   Latest 30 reviews

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