R4 series fans offer a unity of maximum rotational speed and optimum airflow. Using a unique long-life sleeve bearing fan, the R4 series offers long life rating of 50,000 hours. R4 series fans perform at a maximum of 90CFM at 2000RPM. These R4 series are available in red, green, blue LED and dark smoke (no LED).
Up to 90CFM (maximum RPM)
19 dB-A silent application for CPU cooling.
RoHS compliance for protecting the environment
Recommended for V10, V8, Hyper 212, Hyper Z600, Gemini, Cosmos, Cosmos S, HAF 932, HAF 922, CM Storm Scout and Sniper.
50,000 long life hours.
- by David_W @Nov 10, 2009
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I bought 6 of these fans to go into a new build of mine. Only 3ish weeks of use later and 1 fan is "broken" and one blade hits the cowling and another squeaks loudly. I have had to remove both of them and replace them with the stock fans included with my case. Also the molex to fan power converters are so difficult to attatch to a molex cable i broke 2 of the cables that came with my PSU just trying to connect them, before I discovered that I had some old ones in a box that fit perfectly. If you get fans that do not die they are very nice but 2 out of 6 fans with an issue is unacceptable to me. I am going to look into buying some corsair high SP fans to replace them for the long run.
I like the LED look of this fan, and I love its airflow. This fan moves a lot of air, and its native fan noise (standalone/outside of a case) is quiet. However, when mounted as an intake directly on a some types of mesh, the air noise will be pretty audible. I had two mounted to the front of a Cooler Master HAF 912 and at full speed the two together were as loud as two full-power Bgears b-blaster 120mm fans on the top exhaust mounts but with a slightly higher pitched air whine. It didn't bother me personally, but this just shows that this fan isn't always as "silent" as Cooler Master markets it to be. Still a great fan for the price though.
LED's are great, moves more then enough air. Purchased 2 of these, and 2 140mm green led bitfenix and these are by far better at their job. For less then $10... would most definitely recommend!
These surprised me how good they actually are, I'm not a huge coolermaster fan (pun) but my customer wanted green in his case, and the price was certainly right. The sickle design really moves a lot of air, free standing they'd push themselves across my desk. Put in 3 of these and his case is so cool I want to store beer in there. Lights are very bright, nice colors. They're not quiet, but that's to be expected with that kind of performance, I wouldn't call them "loud" though.
I purchased this fan 2 months ago, and put it in my Thermaltake V4 case. However, it was unbearably loud. I tried putting it on the front (intake), side (intake), and top (exhaust), and in each configuration, it was extremely loud at 100% fan speed. I did not have a fan controller at the time.
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Support For USA, Canada, & Mexico Cooler Master USA, Inc. Unit A - 1951 S Parco Ave. Ontario, CA 91761
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