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Silverstone Air Penetrator AP181 180MM 700RPM 80CFM 18DBA Directed Airflow Cooling Fan - Black

1200RPM 130CFM 34DBA in high airflow mode
This product can only be exchanged or replaced with the exact same item.
Silverstone Air Penetrator AP181 180MM 700RPM 80CFM 18DBA Directed Airflow Cooling Fan - Black - 1
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Silverstone Air Penetrator AP181 180MM 700RPM 80CFM 18DBA Directed Airflow Cooling Fan - Black - 53949_l.jpg Silverstone Air Penetrator AP181 180MM 700RPM 80CFM 18DBA Directed Airflow Cooling Fan - Black - 53949_1.jpg Customer Photos (0)
Silverstone Technology
Reg. Price: $34.99  CAD
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   Shipping Weight:   1 lbs
   Part #: AP181
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Features    [ Edit | History ]
Traditional computer fans are made to expel air, so for years, airflow was the most important rating that determines cooling efficiency as most fans are used as exhausts. However, with positive pressure gaining importance in computer cooling technology, SilverStone create d Air Penetrator fan specifically designed for intake fan applications, where airflow rating is not a priority. The design goal for Air Penetrator is to focus airflow into a column that can be channeled through various obstacles inside the modern computer case for more efficient cooling performance. Compared with traditional fans, where airflow spreads outward and further looses focus with resistance added (e.g. filters, fan guards, etc…), Air Penetrator fan’s unique blade and grille designs can create  enough pressure to push air as far as 1 meter away with minimal fan speed and noise. This unmatched efficiency makes Air Penetrator ideal not only as intake case fan, but also perfect for high density heatsinks and radiators.

Special Feature
Industry leading air channeling fan
Wide fan blades for reducing air resistance
Integrated air channeling grille double as fan guard to reduce overall size
Low power consumption

Specifications    [ Edit | History ]
Model No.
12V DC
10.8V DC (in low rpm mode)
0.45 AMP
700 ; 1200 rpm
 Effective airflow range
1.2 ; 3 Meter
80 ~ 130 CFM
Max 1.1~2.45mmH2O
 Air flow
1.9m/s ; 3.1m/s (measured at fan exit)
18 / 34dB(A)
180mm (L) x 180mm (W) x 32mm (H)

Silverstone Technology AP181 Customer Reviews

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 Silverstone Technology AP181 reviews.
Experience: 90 Days
good build quality-high performance
pricematch needed
very well made fan with great airflow.2 speed switch attached and works well to slow fan to a quiet speed but a pain to hide or mount in non silverstone case

Experience: 1 Years
-can switch between 700RPM and 1200RPM (hardwired switch)
-directional airflow is vastly improved over regular fans
-virtually silent at 700RPM
-some motor/rotor noise when in 1200RPM mode; there is a noticeable increase in noise at the 1200RPM setting but it is still quieter than any 2000RPM 120mm fan I've ever heard, plus it moves an insane amount of air at that speed (130 CFM).
I originally bought these for my Raven RV01 but have since moved them into my HAF X. I installed one as the side-panel intake fan and in the 1200RPM setting it dropped my GPU load temps (GTX 580 SLI) by 13C.

The focused airflow isn't a gimmick and is very noticeable. When comparing the airflow of the 180mm Air Penetrator to the 200mm Cooler Master Megaflow (both at 700RPM), the airflow in front of the AP181 was much more significant. The ability to increase the speed to 1200RPM (bonus points if you have a fan controller) when additional performance is desired makes this fan the king at 180mm+.

Experience: 2 Months
 Verified Owner
big but quiet
results may vary
I replaced one of the stock fans in Fortress FB02 with this fan (right beneath the GPU). With the stock fan, its hard to tell the difference between high and low fan setting, but with this fan, you can definitely hear the the difference. But even then, its pretty quiet and the noise will be drowned by your GPU noise anyway. But, the result is only -1-2C for GPU, not as dramatic change as you would expect from increased fan noise...

Experience: 2 Months
 Verified Owner
Focuses airflow on key components
Slightly noisy, but not an annoying sound
One of the fans is dying already
I can't really compare the effectiveness of the stock 180's or the AP181's in the Raven, but I did notice that my temperatures are much better than what I would typically get in a regularly-oriented case. And the noise, albeit slightly loud, is not annoying at all due to it just being air movement rather than bearing noise.

However, out of the three I purchased, one of them is already dying, as it makes a rattling sound whenever I put it on the 'high' setting. It's slightly disappointing really, considering how expensive these fans are.

Overall though, I'm very pleased with these fans. For those who have the Silverstone Raven or Fortress series, or even any case that can use 180mm fans, I would recommend this.

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Messages about Silverstone Air Penetrator AP181 180MM 700RPM 80CFM 18DBA Directed Airflow Cooling Fan - Black

Inwin Maelstrom (saunders1991- Jul 04, 10, 1 Replies) Read this message
Air Penetrator - Product Specifications (ALP- Jun 13, 10, 0 Replies) Read this message

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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: 9.3/10 with video demonstration using smoke machine. "t's clear that in most cases, the SilverStone SST-AP181 "Air Penetrator" fans provide better cooling performance than the FT02 fans; in some scenarios, like the fan-less Super Mega test, the performance difference is dramatic...The performa
Posted by: Nick_N @02/20/11
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