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- By David_W @Nov 10, 2009
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 69CFM at 2000RPM. These R4 series are available in red, green, blue LED and dark smoke (no LED).
Up to 69CFM (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.
Specifications
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- by David_W @Nov 10, 2009
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Messages about Cooler Master R4-L2R-20AC 120mm Blue LED Case Fan 2000RPM 69CFM 19DBA 3/4 Pin
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One of a trio of 120mm fans I bought as spares, since I never seem to have one when I need it. I wasn't interested in permanent replacement fans for all the more expensive ones I have, just something to tide me over if the need arose. I managed to pick up one of these for an excellent price, just to try it out. These also come with a three-pin male to Molex adapter so they can be connected directly to a PSU rather than a motherboard header. It shouldn't matter either way as they are single speed three-wire fans without PWM and won't ramp up or down according to the motherboard's temperature sensor. Do not be deceived by the description into thinking the 4 pin connector mentioned is a motherboard fan header connector. It refers to the Molex connector. Decent airflow specs, and it seems to move some volume. I'm not certain why so many others found them loud, as I found mine to be relatively quiet Maybe I'm just getting old and my hearing isn't what it used to be - too many years listening to those cheap 80 mm fans we used to put up with. The blue LEDs are mounted to cast a blue light up the four arms of the fan shroud creating a spiral arm effect (pretty much exactly as the picture shows), rather than illuminating the blades as other models do. Just out of curiosity, I connected the fan to a Zalman Fanmate I had and tested to see how it would work spinning at lower voltages. It started right up at the lowest setting and ramped up nicely as I cranked the knob. And the LEDs ramped up in brightness as well :). All in all I have no complaints for the price I paid.
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This fan delivers a high amount of blowing and cooling power. Keeps my pc really cool. would recommend if you want a cool pc but not if you want quiet.
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Perform well and can push air. It's not the quietest fan, and there are other fans on the market that can perform better. However, for its price, it is a good buy and I would recommend it to others and am willing to buy it again.
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The are Incredibly Cool, they work well, i just don't like the sound they make. I was used to have REALLY quiet fans, but i'm really happy of my purchase.
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Pretty lights don't make a good fan. I put gelids in my build, they don't do anything but quietly and efficiently cool my system...for over 3 years
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Bought these for my Coolermaster Cosmos II case ( http://ncix.com/products/?sku=67337&vpn=RC-1200-KKN1&manufacture=COOLERMASTER )- problem is at full speed they are EXTREMELY loud.
Overall works great. Had trouble installing it but overall it moves a TON of air and is not too bad sound-wise, though is loud at 2000 RPM.
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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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