High performance 14cm fan with S-FLOW blades supplying 30% more airflow than a standard fan at the same speed. The greater performance combined with PWM automatic speed control allows the fan noise to be kept to a minimum.
The Viper fan creates more focused airflow providing blind-spot cooling, which makes it an ideal solution for a case or heatsink fan. HDB (Hydro Dynamic) bearings extend fan life and further enhances noise reduction. Killer Viper yellow color makes this fan distinctive and unique.
Note : Cable comes factory sleeved black, other colors are available in the options below.
Total Reviews: 8
Average Rating: 
great fan
09-11-2014
Reviewer: erratic (6)
Good airflow and pretty much silent under 40%, but no matter the speed, always with a smooth acceptable tone.
These Vipers BITE the air!
05-08-2014
Reviewer: Mike (2)
Very high quality fan, well made, high cfm airflow, and whisper quiet. I have one as a secondary filtered intake, and one replaced my main rear exhaust. Whole case temps dropped 5degC overall, yes, everything in the case! I have them paired with some CoolJag 120 PWM''s, and my case has become a wind tunnel! I have a mild 4.2Gig overclock on my FX8350 Bulldozer and this fan setup is MORE than adequate to manage temp spikes. My first time experience with Frozen was a pleasure, and has insured I will shop with them again.
Great fans
08-29-2013
Reviewer: Marcin (2)
I needed to replace my stock H110 fans since one was making an noise at higher rps. Searched around and came across these Akasa Vipers. So far I''m pleased with these fans they perform great, and I don''t hear any odd noises or ratlles like I did with my stock H110 fans. The price is great, the quality is there, the fans are well built. Anyone looking for a replacement 140 mm radiator fans I would highly recommend these. They do the job while looking cool.
Marcin
Quality Fans
08-28-2013
Reviewer: Marcin (2)
I was looking to replace stock fans that came with my H110 Cooler, because one fan started to make odd noises. Since Corsair doesn''t make SP140 fans, I decided look for 140mm fans with high static pressure. These fans (Akasa Vipers) were recommended in a many forums, so I decided to give them a try. These are very well made fans, the quality is there, also the price is great too. I''m very happy with these fans so far, no odd noises and rattles. I would recommend these fans to anyone looking for 140mm PWM fans. Did I mention great price.
Solid fans, great performance
04-19-2013
Reviewer: Matt (1)
Very well built and sturdy plastic, not flimsy like some. Two of these replaced the stock fans from a Corsair H110 which were rattling at high and low speeds. These vipers are very quiet, no sounds from the motor at all. With higher pressure, these Vipers push more air through the radiator at a lower speed than the stock fans. Great buy overall, I may get a few more to replace my case fans.