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Cooler Master > 
Item#: 9SIA6J335K4415

Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Silent Fan for Computer Cases, CPU Coolers, and Radiators (Smoke Color)

  • 120mm
  • 2000 RPM 69 CFM
  • Long Life Sleeve
  • 19 dBA

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

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-C2R-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.

Learn more about the Cooler Master R4-C2R-20AC-GP

Warranty, Returns, And Additional Information

Customer Reviews of the Cooler Master R4-C2R-20AC-GP

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  • Bryan L.
  • 4/22/2016 4:17:36 PM
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsShort lifespan

Pros: They look good.

Cons: Short life span.

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  • Cory L.
  • 4/10/2016 5:41:21 PM
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsMediocre at best

Pros: It is a cheap fan with decent looking cables. They aren't terribly loud even at full speed.

Cons: After about a month they started squeaking in oscillating manner relative to the speed I used on the fan controller. I usually have them off now because of this unless it is really hot. After about 6 months 1 of the 3 fan's blades started hitting something very slightly as it spun making a rapid ticking noise.

Other Thoughts: The LEDs are very dim on these. If you want bright LEDs, then look elsewhere.
I'm not sure if I was a quality control issue or not, but the quality of the fans I received was not up to par. I should have spent my money elsewhere.

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  • ROBERT R.
  • 4/10/2016 12:50:42 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsGoes out too fast.

Pros: I had to come back and change my review, after only using this thing for a few days it's already started making awful rattling noises like it's wobbling or the bearing is going bad. Shame too, I liked the price and it looks great!

Cons: It's too cheap, it starts to rattle after a few days and is annoying as heck. Basically, it's already broken :[

Other Thoughts: When mounted as my back exhaust instead of my top exhaust it makes the sound of wind moving through metal piping due to the air going through the grates on the back.

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  • Charles P.
  • 4/5/2016 9:06:26 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggswonderful wonderful

Pros: a great deal at Newegg

Cons: aha! nada

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  • Anonymous
  • 4/2/2016 7:13:15 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsMounting vibration / loud

Pros: Cheap. Decent LEDs. Not horrible.

Cons: Offers case vibrations and overall a bit loud for my tastes for the air they move. Swapping for fans with nicer LED effects that come with rubber mounting rivets.

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  • Catherine W.
  • 3/25/2016 1:55:55 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsAmazing fans for the price!

Pros: Bought 5. 3 for case and 2 for push/pull on my hyper 212 evo.
Keeps CPU cool, air flow is good and the LED's light up my case in a perfect light red hue through my side panel window.
No coil whine in my experience.

Cons: Can be a little noisy from fan blade design if pushed above 1300 RPM.
Cables could be black instead of clear to match fan/color theme.
Screws are absolutely horrific (and could be black instead of silver to match black cases) and strip way too easily. Had to use my own fan mounting screws.

Other Thoughts: I would definitely recommend these fans. The price is amazing and other than a few flaws that can be fixed they perform beautifully.

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

  • Jason A.
  • 3/16/2016 2:59:04 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsStandard product

Pros: The LEDs are nice and bright, pretty standard fans, they aren't very quiet but that also may have to to with the fact I have 6 of them in my case

Cons: Not much just note that of you are looking to mod you case with other LEDs I recommend going with one's with out any lighting.

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  • Anonymous
  • 3/15/2016 1:53:32 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat fans

Pros: Fans are great
They look good
Lots of airflow

Cons: Loud, but in a different way - not like in the motor, just the air flowing around it

Other Thoughts: I have two on my cpu cooler and 3 in my case, everything runs cool.

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  • Jeremy S.
  • 3/3/2016 5:55:33 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat case fans.

Pros: Lasted 3 years so I would say these are darn good fans.

Cons: None.

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  • brandon b.
  • 3/3/2016 5:41:37 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggseasy to setup

Pros: great airflow and bright L.E.D's

Cons: case vibration

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Home
Home - United Kingdom > 
Components > 
Fans & PC Cooling > 
Case Fans > 
Cooler Master > 
Item#: 9SIA6J335K4415
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