COOLER MASTER R4-L2R-20CR-GP Red LED Case Fan

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The fans are amazing and veary quiet in my opinion. I like turning off all of the lights and playing a scary game wile my case glows RED. If you don't buy then now you are stupid!

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These are the quietest, most powerful case fans you can get. My in-the-case temp, with one of these sucking and another blowing, runs around 32C with a Q9550 OCed to 3.8GHz. Best fan purchase I've ever made.

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I needed additional air flow to help cool my dual core. It tends to run too hot, and I can't underclock it with my motherboard. I can see a big temp difference using these fans over the ones I was using earlier.

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Looks very good. Quiet and moves a lot of air.

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These are awesome they have alot of airflow and they look really cool! And because they're by CM you know that there good quality. I little loud but I use w/ Ultra fan controller. THEY"RE $8 BUY THEM!!!

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the person before me, what they are saying is true for the number of fans they have. remember for each fan you add to the first, it adds 3dB to the sound you are getting from them combined at full blast. so in reality: single @ 19dB + 3dB for 6 more fans (18dB addition) should sound something like 37 dB depending on where they are, distance from you to the fans, even air temperature changes acoustic waves. normally the sound of "silence" without obvious acoustic masking, bass traps(foam corners) etc your environment will be anywhere from 17dB to over 20dB just from the sound of your breathing, sounds from outside, or movement of air through the grilling of the case. actual SPL(dB level) of the fan on max with mesh grill or dust filter is 23dB, open without grilling, mesh or filters at max is 19-20 dB. best performance, quietest fan i have ever used and for the price i have spares, in box waiting to be used.

Comment:
I have a HAF932 and replaced the (2) 230mm fans with 7 of these 120mm fans, it lowered the temps in my case by almost 10 degrees. The bad thing is these fans are not 19db, its more like 34db at full power. at 90cfm these fans are pretty quiet though. I would recomend these fans!

Comment:
This fan is an amazing deal. It is 90cfm and very quiet. I swapped out 2 fans in my case with these fans and added a 3rd one and it is still quieter. Air flow seems very good and the fans look very nice. The only drawback I found was that it had a semi short cord making plug in a little difficult. I would highly recommend this fan. You won't find a fan with specs even close for the money.

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90 cfm, that's why you get this fan...and the LED's of course. Adds a nice glow, not super bright doesn't blind you. Might want to invest in some silicon dampers to mount between the fan and the case. Two fans close together aren't synced, so you get a little case vibration. The fans are quiet other then that.

Comment:
Purchased a two pack of these fans. Installed one on the case and it brough the temp down 10C immediately upon restart and is holding. Very quiet fan, don't even hear it running over the regular noise. I would highly recommend this fan.