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Cooler Master > 
Item#: N82E16835103022

Cooler Master Sleeve Bearing 120mm Blue LED Silent Fan for Computer Cases, CPU Coolers, and Radiators (Value 2-Pack)

  • 120mm
  • 1200 ±10% RPM 39.77 CFM
  • Sleeve
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Case cooling is becoming more essential these days. The better airflow inside your system, the cooler and more stable system you will get. The COOLER MASTER R4-L2S-122B-GP comes with two fans offering economic solution for perfect performance.

  • newegg High Performance The COOLER MASTER R4-L2S-122B-GP delivers generous 39.77 CFM of air flow to efficiently and effectively dissipate the heat inside the chassis.
  • newegg Silent Operation This case fan runs at 1200 R.P.M. + / - 10% and produces neglectable 19 dB-A noise level bringing peace of mind to you and your co-workers.
  • newegg Blue LED The 4 blue LEDs radiate mystic blue light through the higher transparency fan frame creating an immersive ambience for eye-catching fun.

Learn more about the Cooler Master R4-L2S-122B-GP

Quick Info


Customer Reviews of the Cooler Master R4-L2S-122B-GP

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  • Brandon Y.
  • 4/29/2015 10:27:13 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsDoes what they're supposed to do.

Pros: Nice and bright.

Cons: Didn’t quite match the blue in my PC, but that’s only a minor concern, and not the product’s fault. Also, the fans are loud in their stock configuration; you must plug them into a fan controller or a header with motherboard control if you want to bring the noise down to tolerable levels. Again, this is merely a personal issue. Absolutely nothing wrong with the product itself

Other Thoughts: The product works, and works well. They're fans. Not sure what more you can expect from them.

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  • Jeffrey J.
  • 4/25/2015 2:50:16 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat fans. Bright leds.

Pros: Great quiet fans that move a decent amount of air. I purchased 4 of these for a midsize case and it dropped my temps by 10c. I will be buying more for my own full size system.

Cons: The lights on mine are pretty bright. So if anyone has a clear side panel case, your room is going to be blue in the spot these fans are at.

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  • Sabra W.
  • 4/22/2015 7:49:44 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNo sound

Pros: Great brightness of led's, very soft sound.

Cons: they should include an extender because i had a little trouble trying to route them in my full tower.

Other Thoughts: all and all great fans

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  • ALBERT B.
  • 4/18/2015 7:28:52 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsUpdate from 1/9/15

Pros: Silence is cheap

Cons: None

Other Thoughts: Rebate took forever, but finally came through.

Fans move a decent amount of air and are silent.

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  • Tracy B.
  • 2/22/2015 10:53:50 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsThey work

Pros: They are quite. The LEDs are bright. Keeps my system cool,

Cons: None

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  • Kevin A.
  • 2/21/2015 8:16:18 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsSilent fans

Pros: Nothing beloew amazing, I recently had 2 80mm fans with a few dead LED's and a stock 120mm fan that came with my case. i Purchased 2 of these on sale and 2 of the 140mm versions and i couldnt be more pleased. they are very quiet, especially compared to my 80mm fans and now my case runs about 10-15 degrees cooler

Cons: none what so ever. GREAT PRODUCT!!!!

Other Thoughts: They are fans. Fans move air. They arent %100 silent but with my fan controller set to max, I can only hear them in I pay close attention. for those who think they are noisy must constantly have their ear resting on the the case/fan in a dead silent room...

I am using;
1 120mm intake fan on the bottom.
1 120mm intake fan on the front(stock fan in case)
1 120mm exaust fan(rear)
2 140mm exaust fans(top)
and the 2 side fan mounts are open and usually act as an intake when my CPU/GPU fans ramp up and my case never gets over 36c

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  • Michael M.
  • 2/18/2015 7:26:48 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat price, worked and looked awesome.

Pros: This 2-pack was on sale for under $10, and it was a deal. These look and worked great. Quiet.

Cons: None

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  • Andre B.
  • 1/22/2015 6:56:12 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsRead this before submitting rebate!!!

Pros: (MADE SOME MISTAKES IN MY EARLIER REVIEW, PLEASE DISREGARD THAT ONE AND READ THIS INSTEAD...CORRECTED PRICE OF FANS AFTER REBATE AND CHANGED OWNERSHIP TO "ONE DAY TO ONE WEEK"

These come out to roughly three dollars and twenty five cents per fan including the cost of mailing the rebate form to cooler master so on the one hand it's really hard to complain given the price (make sure you buy them on sale when a rebate is being offered... the fans look great, they don't push as huge an amount of air as the other case fans I foolishly did not purchase more of for five dollars after rebate during the December sale madness (Cougar CFD12HBG , now back up to the full fifteen dollar price.. sigh....of course I had no way of knowing the big fan in my other PC case would crack and force me to replace the whole darn thing but still, common sense, you stock up on them when you see a deal like that! Sighs again)... so given it's January well after the "December madness" sales I guess I'm lucky to get these at such a low price assuming the rebate comes to me in the mail...

I just installed them today and haven't noticed them not working or making a horrible grinding sound like other reviewers have mentioned despite being horizontally installed rather than vertical (i.e. the two case fan openings at the top of the PC case) ... I definitely found however that you need a BIG screwdriver you can apply a lot of force to/on in order to install the fans using the screws provided.. fortunately I keep a monster sized screwdriver around (10 inches long.. oh cripes, that sounds like one of THOSE kinds of jokes doesn't it ? It's not I swear) for these exact sort of situations so with a bit of force installing the fans wasn't a problem... they went into my white ultra defender atx mid tower gaming case (also purchased for a steal after rebates).. the case itself came with two clear fans with blue lights that look almost exactly like these two cooler master lights so it was a perfect fit, the case has a see-through panel on the side so you can see this cool blue glow all four fans are now emitting into the PC case :) .. given the situation although I've only had them for a day (will update this review accordingly if anything goes wrong with the fans, if you don't hear from me it means the fans are still going strong) I'm happy with these fans! :) What I am NOT happy with however...

Cons: That rebate... oh dear heaven somebody please, please help me.... that awful, awful rebate form !

I was surprised to see a rebate form that had to be written out by hand.. shrugging my shoulders I nonetheless dutifully printed it out as well as the address it should be mailed to on my printer... it was only after doing such that I noticed the "for faster processing please submit this rebate online" part which appears ALL the way down buried in the middle of the rebate form... since I of course wanted my rebate more quickly I ended up reprinting the entire rebate form all over again after submitting it online and had to reprint the envelope too, apparently it goes to a different mailing address when you submit it online.... all that paper, ink time and effort wasted over a five dollar rebate :( ....

It just doesn't make sense... you would need a printer to print out the rebate form to begin with, if it's faster to submit the rebate form online why offer a printable pdf where you can write your info by paper when it's so much easier to just type it up online, submit it online for faster processing, then print out the document with your name, address and so forth and all the other required info (minus the barcode and receipt/invoice which of course you need to submit as well) already on it? I'm thoroughly confused as to why Cooler Master would do this???

If someone from Cooler Master is reading this.. please, I'm begging you, redesign the rebate form to the way so many other people are doing it ... instead of putting in those blank spots to write by hand just direct us to the appropriate website where we can submit it online and type all our info instead. PLEASE ! PRETTY PLEASE ! :( :( :(

Please?

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  • Ricky R.
  • 1/19/2015 12:06:15 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: -Quiet
-Pushes decent amount of air
-Good looking LED lighting and clear plastic body
-Excellent value

Cons: They don't make me pizza?

Other Thoughts: If you're looking for some real good, quiet fans with pretty blue lights for cheap, grab a few of these for sure.

*Notes --- Been using these with an NZXT fan controller for a few months, working cool n quiet ever since I bought them!

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  • Joseph A.
  • 1/18/2015 11:04:06 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsWhat a deal!

Pros: Great price with rebate
Well made
Very Quiet
FREE shipping

Cons: None

Other Thoughts: I finally got to use one of these fans when one of the fans in my i5 machine became too noisy.

It was nice to have a couple of spares around.

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Item#: N82E16835103022
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