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Item#: N82E16835103091

Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

  • 120mm
  • 2000 RPM 69.69 CFM
  • Long Life Sleeve
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BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Case cooling is becoming more essential these days. Quality fans with better airflow inside your chassis will give you a more stable system. The SickleFlow 120 with 2000 RPM is no doubt one of the best case fans in the market.

  • newegg High Performance LED Fan The 120mm fan delivers strong airflow up to 69.69 CFM for impressive heat dissipation while its transparent dark-gray blades give better LED effect.
  • newegg Whisper-quiet As an excellent choice for case cooling, the 120mm fan keeps the noise level down to 19 dBA for silent operation.

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.

  • newegg High Performance The COOLER MASTER R4-L2R-20AC-GP case fan delivers up to 69CFM of air flow to efficiently and effectively dissipate the heat generated inside the chassis.
  • newegg Silent Operation This fan runs at 2000 R.P.M. and produces mere 19 dB-A noise level bringing peace of mind to you and your co-workers.
  • newegg Constructed to Last The high quality sleeve bearing fan provides maximum of 50,000 hours of lifespan for hassle-free long term use.

Case cooling is becoming more essential these days. Quality fans with better airflow inside your chassis will give you a more stable system. The SickleFlow 120 with 2000 RPM is no doubt one of the best case fans in the market.

  • newegg High Performance LED Fan The 120mm fan delivers strong airflow up to 69.69 CFM for impressive heat dissipation while its transparent dark-gray blades give better LED effect.
  • newegg Whisper-quiet As an excellent choice for case cooling, the 120mm fan keeps the noise level down to 19 dBA for silent operation.
  • newegg Long Life The fan uses long life sleeve bearing for longer life expectancy.


Learn more about the Cooler Master R4-L2R-20AR-R1

Model

Brand
COOLER MASTER
Series
SickleFlow 120
Model
R4-L2R-20AR-R1

Spec

Type
Case Fan
Compatibility
Case
Fan Size
120mm
Bearing Type
Long Life Sleeve
RPM
2000 RPM
Air Flow
69.69 CFM
Noise Level
19 dBA
Power Connector
3 Pin
Color
Transparent dark-gray
LED
4 Red LED

Physical Spec

Dimensions
120 x 120 x 25 mm

Features

Features
Transparent dark-gray fan blades for better LED effect

Long life sleeve bearing for longer life expectancy

Strong air flow to fortify cooling efficiency

Silent operation as an excellent choice for case cooling

RoHS compliance

3 to 4 Pin Adapter included

Recommended for V10, V8, V6, Hyper 212+, Cosmos, Cosmos S, HAF 912, HAF 922, HAF 932, HAF X, CM 690 II, CM Storm Scout and Sniper.

Air pressure (mmH2O): 2.94 mmH2O
Life Expectation: 50,000 hours
Rated Voltage: 12 VDC
Current (Ampere): 0.35A ± 10%
Power consumption: 4.2W ± 10%
Weight: 116 g
Screws: 4 pcs

Manufacturer Warranty

Parts
1 year limited
Labor
1 year limited

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Cooler Master R4-L2R-20AR-R1

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Showing 502 of 502 reviews - Clear Filters

  • N/A
  • 6/26/2014 9:20:22 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsgood, but loud

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: good airflow

Cons: pretty loud

Did you find this review helpful? Yes No

  • RazberyBandit
  • 6/20/2014 11:10:04 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsDecent Fans

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Very fair price (under 10 bucks) when on sale. High airflow w/ respectable pressure. Soft & very red (not orange like some) LEDs. Quieter and greater CFM than the Antec Tri-cool fans I replaced.

(The only quieter 2000rpm, 80+ CFM fan I've personally used is a NoiseBlocker E-Loop, which costs 3- to 4-times as much as one of these.)

Cons: Some people may consider these a little noisy at full-blast (2000rpm), but it should be expected at that speed and airflow level. The sound is not from the fan's motor, but from the blades moving so much air.

Other Thoughts: I couldn't be happier with the price/performance ratio these fans offer.

I purchased 3 of these to use in an older Phenom II & HD4890 system within an Antec 300 case -- two intake, one rear-exhaust -- in combination with the stock Antec 140mm 'Tri-cool' mounted at the top of the case (set to low-speed). The side-panel has been modified with a sealed window installed, so the stock side-intake (or vent) no longer exists. The 2 intake fans manage to pull plenty of air into the case to keep its components cool, and the rear one pulls most of the hot air right out the back.

Did you find this review helpful? Yes No

  • N/A
  • 6/20/2014 12:22:22 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGood aftermarket cooling solution

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Fan is well made. Blades are not at all flimsy. Cowling is stiff. Wires are as good as any I've ever seen on a 120mm fan.

Comes with the 3pin to male/female molex adapter. Believe it or not, I've ordered fans in the past that don't.

Works perfectly with my NZXT fan controller.

I'm always biased towards this point because cooling noise doesn't bother me, but these fans run very quiet, even at full speed.

Definitely better than the fans they replaced. The old fans were Cooler Master fans out of a Cooler Master case which my controller reported to run at 1200RPM. My controller reports these running up to 2000RPM.

Even at 800RPM these fans move enough air to keep my tower frosty. It typically runs about 15 degrees above ambient temperature even when gaming.

Cons: LEDs are pretty weak to be honest. I wouldn't have knocked an egg off if it weren't for the fact I ordered LED fans to bathe the inside of my case in a red glow.

A minor con, but silver screws? Really? Would it have broken the bank to toss in black screws to compliment the black fan cowling and Cooler Master's almost entirely black line of cases?

Other Thoughts: I bought enough of these to totally revamp the cooling in my case, so whatever I've said up to this point has applied to the seven fans I ordered.

2 out of 2 people found this review helpful. Did you? Yes No

  • N/A
  • 6/17/2014 10:11:59 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsNot bright enough

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Airflow isn't bad

Cons: wish the lights were brighter!

Did you find this review helpful? Yes No

  • N/A
  • 6/16/2014 2:02:27 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsNoise Rating Suspect

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Looks nice.

Cons: Rated at 19dBA. Compared to 6 other fans, 2 models/manufacturer fans that are also rated at 19dBA. This is SIGNIFICANTLY louder! I have 2 of these and they are both way louder. To loud for the desired application.

Other Thoughts: Don't believe these are really 19dBA after comparing to other 19dBA fans. Very disappointed.

Manufacturer Response:

Hello Craig S,

We apologize for the trouble that your are experiencing with the Sickleflow 120mm fan. Please contact us for further trouble shooting.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

0 out of 1 people found this review helpful. Did you? Yes No

  • N/A
  • 6/12/2014 5:21:24 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Good airflow. Very nice looking lights. Comes with 3 pin power to molex adapter.

Cons: A little loud when plugged into 3 pin power but pretty loud when plugged into molex power.

Other Thoughts: I've read almost all the reviews on these fans and some complaints were justified while others weren't. First off the biggest complaint was the noise and yes that's legit. When plugged into a 3 pin power connector on the motherboard they are about as loud as case fans from back in the Windows 98 days. This is noise from the fan itself as in the whir of the motor and not any case vibration or air flow noise. Next is the luminance of the lights. The best way I can describe it is to take your standard red laser mouse and flip it over and look at it. That's the exact luminance and color of this fan. So no it's not going to light up the inside of your case. Another issue I read about was how difficult it was to screw in the screws which I really didn't have any problem with. These are standard case fans that take a little bit of force to screw in as is normal with all case fans I've dealt with.

Overall I'm pretty happy. I've got three of these running. They look fantastic to me because I wanted a low key brightness and the airflow is impressive. While I can tolerate the noise I do have to dock an egg because I don't think it's fair to say that it's 19db.

Did you find this review helpful? Yes No

  • CactusBear
  • 6/12/2014 4:54:38 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsNot What I Expected

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Nice LED show.

Cons: Noise on low RPMs and worse on the highest.

Other Thoughts: I had really high hopes for this fan when it came in as I assume Cool Master makes really good fans and cases. Sadly this product wasn't one of them. When I connected it on my computer case front on my Cooler Master Elite 431 Plus case using the 4-pin to 3-pin peripheral adapter it came with, it went of at high rpm with a sharp buzzing noise.

This irritated me a lot and I tried it even with the front and bottom of my case closed up giving it a chance hoping the noise would dampen. Sadly it still irritated me. Finally I saw i t as a chance it could work as a better performing replacement of my Crosair H60's radiator fan as it claims to have better air push. Now this time, the fan was connected to my motherboard's 4-pin fan chassis connection, meaning I 'll have control over it.

It actually did horribly as this time, there was hardly air pushing through the radiator even at the maximum fan settings through both my BIOS and my desktop app. The noise on is bearable in between the highest and lowest RPM setting, but worse in the lowest setting. I also have to mention I've set this fan both in in a horizontal and vertical position, upside down and upwards.

This just turned out bad for me. I'm just going to return it because I would feel bad if I passed this on to another person. I'm staying with Crosair fans from now on.

Manufacturer Response:

Hello Victor,

We apologize for the trouble that you are experiencing with our Sickleflow 120mm fan. Please contact us for further trouble shooting.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • Seabas
  • 6/3/2014 9:37:02 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsThey work

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Move a decent amount of air. the lights are cool.

Cons: Can get loud at higher rpm

Did you find this review helpful? Yes No

  • Nomaran
  • 5/30/2014 11:13:45 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsOverall Great

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Great air flow, decent looking, quality build. Honestly I have another set of four of these with blue LEDs and they've been going for 3-4 years now without any issues. LEDs still intact as well.

Cons: The red LEDs on these are a bit dim, it might just be the computer's PSU. I'm going to try them in a new build soon just wanted to make sure these worked.

Did you find this review helpful? Yes No

  • Tradesman
  • 5/13/2014 10:36:43 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGood Fan

This review is from: Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators

Pros: Works fine and still running :)

Cons: None

Other Thoughts: None

Did you find this review helpful? Yes No

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