COOLER MASTER R4-L2R-20AC-GP Blue LED Case Fan

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Purchased 3 of these for my radiator for my water cooling loop. They are fairly quiet even with out a fan spped controller. They push air very well through my rad. Excellent product for the price.

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Wonderfully quiet, decent air flowfantastic cost, and bright but not glaring led's. I'd say there pushing only about 75%of the advertised air flow.but excellent for the greatest cost.

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Nice and quiet. Decent air flow. LED's aren't extreme. Actually looks fairly superior. Lowered my HDD temps by 6C. Lowered CPU temps by 3C. Sort of a strong plastic smell the 1st few hours the fan was installed. It faded away overnight, or I just don't notice it anymore. I got this to replace the stock fan in the front of my CM690 case. The original fan just didn't push sufficient air by way of the tough drive cage @ 40cfm. The new fan pushes 69.69cfm and cools my three challenging drives much much better. I don't recognize why some men and women say this fan is loud, I have it less than 2 feet away from me and all I can hear is the air flow, no whine or any other sounds from this fan. I hope it lasts a while, I just replaced 4 Xigm@tek fans that failed between 1 and 4 months of use.

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My 1st time buying Coolermaster fans and I'm pleased. The led glow is moderate and the fans were more quiet then I expected.

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bought three of them putted in my nzxt case and bang alot of is now getting out, work great !!

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Very good and quiet fan that i have as a push pull on a 212+

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they work, blue led is visually appealing, a must have for any case... i have these paired w my antec 300 case and it looks stunning

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The LEDs on this thing are really cool, (especially if you have a case window) Overall this fan is pretty good for the price.

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These fans had been installed into a CoolerMaster case. Ran them at full speed and are not that loud at all. I read some reviews stating that they were a bit noisy but its just the sound of airflow. The neon blue led's, even although I wasn't into the flashy side of issues, essentially spiced up look of the case in a cool blue setting. So back to the noise, it is just the airflow and is tolerable. Besides, who games in complete silence anyways. NA

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It's loud. If I knew it would be as loud as it is, I wouldn't have opted for the "cool factor". Never the less, you get what you pay for. Keeps system cool, no complaints as far as performance is concerned.

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Works great! Love the blue color! Makes the job for a 9$ fan.

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Great fan for $6 (price matched). Got two for my gaming rig and it keeps everything nice and cool. It is a little loud, but with a headset on, you won't notice it. My heatsink fan used to be really loud because my case was hot, but thanks to two of these, everything is running cool.

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Cheap fans, does the job PM'ed them down to 5.05$ each to replace some fans in the 650d and my rad

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....of air! good for cpu fan noisy at max rmp its blue. im positive somebody utilised the joke I attempted above a lot of times prior to me.

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I have three fans in a Cool Master case they work excellent and they move the air there not loud at all like some fans are. None COOLER MASTER Elite RC-310-BWN1-GP this is the case the fans are in.

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Inexpensive, cute, silent none Utilized with a WC radiator

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overall very satisfied, might pick up 2 more for the top of my case as I have 2 more slots up there

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The fans are extremely quiet. I'm running three in my system and they barely make any noise.They use a proprietary power connector, rather than your typical PSU connector, but they come with adapters.

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-pricematched down to $6 each, replaced all of my noctua fans with these. My new 120" fan of choice. Great for radiators too.

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These move a superior quantity of air. They are fairly quiet. Fan controllers work well on these. A few of the LED's died following a couple of months of use. Originally bought three ྫྷ LED's total) and out of those, there could be three LED's that still work. If you're not looking for an LED fan, these are a fantastic deal, otherwise, appear elsewhere.

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Works great; moves a lot of air is relatively quiet. The blue LED isn't as bright as I'd like it to be, but it's still a great buy for 9$.

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Let me start off by saying that these fans move a crazy amount of air for a small fan, then again what would you expect out of a 2000RPM fan!?!?Also the blue LED effect that it does (LED strip behind fan, through smokey fans) work well with my HAF 922. The blue light reflects off the aluminum to glow very bright out the back end of the case.The only downside for people who are not use to 2000RPM fans. They are, of course, louder than your ordinary stock fan that came with whatever case you picked up. But after using headphones/speakers they are barely noticeable. Even then, these are way more quieter than any laptop out in "Big Box" stores!These are so good that I have 4 in my case right now! 2 in push/pull config on my hyper 212+, one as the rear exhaust fan, and one on the side of the case cooling the GPU directly!

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Moves A LOT of air! Adore the way the led's "wrap" about the bend of the fan blades. I have other brighter fans in my case so this one appears rather dim. I have one for my intake and 1 for my exhaust. Keeps all my parts good and cool, I run consistently around 30c. (with the exception of the video card of course) Of all the fans in my case this one is in truth the loudest. It's not definitely THAT loud if you're severe about cooling and you're applied to computers that need to have a lot of air movement. If you want vibrant, these aren't it. The fan blades seem white in the pic and they are truly a transparent black color. (see the pic of the red fan of the similar kind and firm) If you want quiet, I'd recommend a speed controller. These fans do pack a punch.

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Louder than some other 120mm fans but they push a lot of air and have cool lights. These are not the lights that light up the whole fan body.

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very cool fan, love the green color, also nice and quiet, goes well on my Cosmos S case along with my coolermaster red fans, good product for sure