SilverStone Air Penetrator 空气通道箱风扇 12012025mm/1500rpm AP121（银色）AP121-RL with Red LED Light
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. SilverStone created 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. Industry leading air channeling fan. Wide fan blades for reducing air resistance. Standard 120mm frame for maximum compatibility with CPU coolers. Integrated air channeling grille double as fan guard to reduce overall size. Low power consumption. The Fluid Dynamic Bearing (FDB) for high reliability. Bearing: Fluid dynamic bearing. Rated Voltage: 12V DC. Start Voltage: 5V DC. Rated Current: Max 0.33A (Actual) 0.09A. Rated Power: Max 3.96W (Actual)1.56W. Speed: 1500 rpm. Airflow: 35.36CFM. Effective Airflow Range: 1 Meter. Static Pressure: 1.71mmH2O. Diameter: 120mm. Noise Level: 22.4 dB(A). Air Speed: 2.5m/s (measured at fan exit). Noice Reduction: Includes two speed reduction cables. Life Time: 50000 hours. Dimension: 120mm (L) x 120mm (W) x 25mm (H). Color: Transparent fan blades, silver frame, Red Led.
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So, as for the Silverstone, much better than a generic case fan or even a cheap case fan. For the price I feel like the "air penetration" feature should be more powerfully pushed through the case, even at the highest voltage for this fan. At this price, though, I would likely purchase a different fan brand next time.
cons. These fans do not work well for liquid cooling. Not in my experience. I placed two of these fans on the bottom of my radiator thinking they would work just as well as my Koolance 120mm fans, pushing air up and out of my case. I could not have been more wrong. I had to abort a burn in test with prime 95 because the temperatures got way to hot way to fast. In all fairness the Koolance fans which they replaced are rated at about 2200 rpm's. However the innovative design they keep talking about made me think that I could replace those noisy Koolance fans with little or no change in performance. Not the case unfortunately. Another thing that I almost forgot to mention was the fact that these fans do not function properly on both my case and my Koolance fan controller. Unless the fan speed is set to its highest level "10" on my Koolance fan controller, they will not continue to spin. On my NZXT fan controller they the fan speed must be turned all the way up to ensure that they will continue spinning.
I read on Silverstone's site that these fans will work well with high density cpu coolers. I am assuming when they are talking high density they don't mean high density radiators, because that is clearly not the case. They will do a good job of moving air around in your case so it was not a total loss. Other than the disappointing results with my water cooling system, I can not complain.
I buy 12 of this fan for my case, 8 to run push pull on my 480mm rad 1 fan for exhaust fan, 2 for hdd cage and 1 for intake fan and i love it.
the 8 fan that i use for my rad have been able to keep my i7 2700k and my 2 very hood gtx 690 1.2c under ambient temp
Design of the blades, they are the same design of the old fans from the late 60's early 70's those fans would move air from one
side of a typical living room to the other.
And it turned out to be a correct decission I ordered 2 of them one for the side panel and one for the rear both are set up for
exhaust blowing hot air out of the case, the old fan I placed in the front of the case to pull cool air into the case. This set
up worked like a charm. My temps were in the 60c to 65c average now they are 41c to 45c area, that's a huge difference for I can
now overclock this CPU to my hearts content.