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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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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.

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

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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  • akurma
  • 5/25/2015 7:23:30 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • 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: Moves a TON of air
Nearly silent.. see other thoughts
Red LED's

Cons: LED's are a little dim

Other Thoughts: this fan is silent as long as there isn't a filter or some sort of grille put right in front of the air path, if there is all you will hear is air being sucked in.

Did you find this review helpful? Yes No

  • N/A
  • 5/21/2015 8:41:00 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsvery loud

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

Pros: Lights up

Cons: Very loud even at low rpm

Did you find this review helpful? Yes No

  • PCMADDOCTOR
  • 5/14/2015 10:50:09 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsReasonable Airflow

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

Pros: Reasonable airflow for the price. No complaints thus far. Looks good in my case. Sound isn't too much of an issue since I game with my headphones on.

Cons: N/A

Did you find this review helpful? Yes No

  • cakell09
  • 5/3/2015 9:34:06 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsDisappointed

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

Pros: Pushes a LOT of air. Way more than any stock fan I've used. Red LEDs look really nice, good color, not over powering. Pretty quiet for about a year.

Cons: Lasted *just* over a year. 1 year and a few days. If its mounted vertically, it makes a noise like one of the blades is heavier than the rest. If horizontal, it makes a noise similar to the crackle you hear from a HDD. I'm assuming the bearing is shot, which is a real disappointment since the warranty does nothing after a year.

Manufacturer Response:

Hello,

I am sorry to hear that the fan only lasted about a year for you. Please note for any possible future issues that often we will make an exception for you if the product is only about a week outside of the warranty.



CM USA Support

Did you find this review helpful? Yes No

  • Jeff
  • 5/1/2015 9:29:23 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsCooler Master Red LED Silent

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

Pros: Nice fan, good airflow. Look great in the case.

Cons: Bought 6 of these for my full size tower. One of the fans sounds makes an annoying grinding sound. So I either have to send it back and pay almost what I paid for it to RMA or just deal with the annoyance.

Other Thoughts: Looks great, and definitely a good value despite the one malfunctioning unit. I would still recommend this fan to anyone looking to increase the air flow in their tower.

Did you find this review helpful? Yes No

  • N/A
  • 4/29/2015 8:05:23 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsLasted a Year

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

Pros: Good high speed fans and can move a decent amount of air flow.

Cons: First and foremost, the installation was a bit of a pain, I'm never a fan of fans that have to have the screws threaded into the plastic. Makes for a difficult install (at least in my opinion).

Secondly, within a year the center fan in the top of my case started to make rattling sounds like the bearings were going out. When I pushed the top of the fan down, the rattling stopped. So to fix the rattling, I actually applied pressure to the top of the fan before putting the top of my case back on. This caused one of the fan supports to snap (very little pressure was applied) causing me to simply throw the fan out. So now I'm running with a missing fan for pushing my CPU heat out.

If you're looking for a fan that can still do 2,000+ RPM, get something a little more high end than this one, it'll last a lot longer.

Other Thoughts: I've been a long time fan of Coolermaster (I own a Cosmos II) so I don't think it's Coolermaster's fault this went all bad, I own a second Coolermaster fan of the same type and it's got no issues (though I think I hear a rattling every now and then). I think these fans were designed to be cheap and be something that isn't used in a high end gaming rig like mine. Going to be ordering another type of Coolermaster fan, hopefully they last longer than this one.

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

  • Austin
  • 4/29/2015 5:06:12 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsCool Master SickleFLow 120

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

Pros: So far so good, its only been a couple weeks but everything is running smoothly and it was fairly easy to install

Cons: None it works as intended not to loud in the slightest

Other Thoughts: Thinking of buying another to replace the other red LED fan that I have. Also its a really good price for a really good quality fan

Did you find this review helpful? Yes No

  • EX1
  • 4/24/2015 10:38:52 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsRattle and vibrate

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

Pros: Nice lighting

Cons: 3 out of the 6 fans have blades that hit the outer ring of the fan at anything over 1100 rpm and the same fans make a loud chirping sound when running at high RPM as well. Sucks when they are designed for 2000+rpm.

Manufacturer Response:

Hello Cody T,

We apologize for the trouble that you are experiencing with the Sickleflow 120mm fan. The Sickleflow 120mm does have 1 year warranty so please contact us for a replacement.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • lungfish
  • 4/23/2015 4:14:31 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsSickleflow 120mm

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

Pros: ~Respectable CFM for the money
~Feels like lots of static pressure, great for coolers/rads
~LEDs arent blindingly bright, just the right amount of light

Cons: ~Somewhat noisy, especially when the fan is obstructed in any way
~Feels cheap, lots of creaking and some sweating when screwing them in for the first time

Other Thoughts: In all, its a decent fan for the price, you really get what you pay for and maybe a little more. Solid choice for those who dont feel like paying the premium of $20+ a pop for a single fan.

Did you find this review helpful? Yes No

  • TimZ
  • 4/15/2015 6:26:22 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsNot meat for silent

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

Pros: Nice looking fans, good LED red tone.

Cons: Lets start that my main focus is to build a PC as quiet as I can while not breaking the bank. and with red LEDs

Based on reviews some saying that the fan was loud others saying that it was OK once you controlled the RPM (which I have a fan controller), I went ahead and bought two. To my surprise even with 40% fan speed these things a are quite loud and make an annoying noise which is a bit lower when a HDD is working.

I wanted to return them but for the cost it takes to ship them back I would loose more $$$

Other Thoughts: Anyone who does not care about a silent PC its a good buy

Did you find this review helpful? Yes No

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