Summary: 1/4 that i ordered turned out funky after 9 months. Not too bad. I run these fans an average of atleast 2-3 hours a day, everyday.
Pros: Great fans Great cooling Lots of airflow Low noise (sounds like air flowing not a fan)
Cons: One of my fans is making a horrid noise after 9 months. It continually rattles in my system and sounds like a really old harddrive that is always processing information. Very annoying, I need to contact the manufacturer and get it replaced. Other than that all of the others work great!
Summary: For some reason after replacing one of the previous fans with this one, the cpu temperature has increased around 50-59C. Hopefully the problem will be solved once I replace the vanilla cpu cooler system.
Pros: It is doing better job than the vanilla fans, that's for sure. It is also quiet and keeps the gpu's fans speed at minimal, even at high demand.
Cons: As far as I have it, it doesn't seem to have any problem. Maybe it would be neat if it had lights, but I am asking too much hehe.
Pros: I have used these fans in several different builds over the last year or two and I am still very impressed. These fans move a ton of air and are very quiet no matter what RPM you run them at. Highly recommend!
Pros: Very quiet at all speeds. I installed it at the Cooler Master Hyper 212 radiator and at 100% workload it is still quiet enough. I cannot say exactly about noise level for it since the case has two case fans but all three of them produce less noise than 1 noisy intel-stock CPU fan.
Haven't done a case temperature comparison but I wasn't having heat issues before and I'm still not so I'm happy on that front
Alex K. Corscadden, Amazon
21 May 2015
Summary: Went from a pair of 3 pin old-style case fans to two of these in a Lian Li case. The old fans were whistling when throttled down, these are much quieter. Haven't done a case temperature comparison but I wasn't having heat issues before and I'm still not so I'm happy on that front.