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Cooler Master > 
Item#: N82E16835103060

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

  • 120mm
  • 2000 RPM 69CFM (maximum RPM)
  • Long Life Sleeve
  • 19 dBA
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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.
  • newegg Long Life The fan uses long life sleeve bearing for longer life expectancy.

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.


Learn more about the Cooler Master R4-L2R-20AC-GP

Model

Brand
COOLER MASTER
Model
R4-L2R-20AC-GP

Spec

Type
Case Fan
Compatibility
Case
Fan Size
120mm
Bearing Type
Long Life Sleeve
RPM
2000 RPM
Air Flow
69CFM (maximum RPM)
Noise Level
19 dBA
Power Connector
3 to 4 pin Adapter
Color
Transparent
LED
Blue

Physical Spec

Dimensions
120 x 120 x 25 mm

Features

Features
RoHS compliance for protecting the environment

Recommended for V10, V8, Hyper 212, Hyper Z600, Gemini, Cosmos, Cosmos S, HAF 932, HAF 922, CM Storm Scout and Sniper.

50,000 long life hours.

Quick Info


Customer Reviews of the Cooler Master R4-L2R-20AC-GP

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Showing 908 of 908 reviews - Clear Filters

  • Sarah P.
  • 7/9/2014 5:32:48 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsTerrible Product

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

Pros: Blue LED looks nice. Black fan blades fit nicely with my build.

Cons: Oh where to begin!

1. Is not compatible with Corsair H100i CPU cooler. (this one was my bad, as I should have checked before purchasing)

2. When running on anything less than 100% (max RPM) fan RPM, the fan makes a high-pitched whining noise that is quite loud and disruptive.

3. Max RPM was not 2,000 as advertised, but mine clocked in at a top speed of 1,600 RPM.

So overall, the Cooler Master Sickleflow 120 is not silent, does not run at 2,000 RPM, and definitely does not produce only 19 dBA.

When not running on max RPM's, it does this odd cycle of spinning at max rpm's, and upon hitting the max rpm, it slows back down to a halt, then repeats this cycle. (most likely due to compatibility issues with corsair link)

Other Thoughts: Will be returning to my stock 120 mm fan until I can make a more educated purchase.

Manufacturer Response:

Hello Sarah P,

We apologize for trouble that you are experiencing with the Sickleflow 120mm fan. It appears you may have received a defective fan due to the noise and incorrect RPM reading.

Please contact us by Phone or Live Chat so that we can send you a replacement.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • TRONG N.
  • 7/5/2014 7:44:01 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsVery nice case fan for the price!

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

Pros: Quiet with the right set up.
Looks very cool.
Moves air well.

Cons: LED not as bright as shown.
Short cable (initially, pro/con)

Other Thoughts: Have 2 of these boys on the side of my case as of now. They look very cool when they run, however, the LED is just not that bright and after an air filter layer for each fan, the LED effect can only be seen in dimmed light/ the dark. The cord on each fan is a bit short (10-ish inches?) so that might be a pro/con. These are sleeve bearing, so don't you go and mount these horizontally. Overall, I don't recommend you buying these for +CPU cooling +to put it horizonally +if you need and eye popper LED fan, otherwise, it works well as described.

Did you find this review helpful? Yes No

  • John S.
  • 7/5/2014 3:31:44 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsNice fan

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

Pros: Moves air well. Looks great. Can use 3-pin connection and not a big, ugly molex. $3 after rebate!

Cons: Only one rebate per household :(

Other Thoughts: Blue LED's are very muted, possibly due to black frame and blades.
Perfect level of brightness if you want some light, but not enough to be annoying.

Did you find this review helpful? Yes No

  • Johnny C.
  • 7/5/2014 2:22:59 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsDecent case fan that pushes a lot of air

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

Pros: It does push a lot of air compared to the stock Rosewill Challenger fans.

Cons: The LED is meh, when you look at it, it is just 4 curvy lines but the fins are not transparent enough to carry the light throughout the whole fan like the stock rosewill challenger fan.

When you put this in front of a mesh opening as an intake with no space between the fan and the opening, it makes a metric ton of noise. I had to switch the stock rosewill challenger fan with this one for the rear fan because it made too much noise. This fan goes in the front where it has an inch of space between the opening and the fan where it does not make much noise compared to the other configuration. This may be due to the high RPM which is partly my fault for picking a high RPM fan.

Other Thoughts: As an intake rear fan you might wanna get a lower RPM fan because if there is not a lot of space between the fan and the mesh opening, it will make a lot of noise.

Did you find this review helpful? Yes No

  • mike h.
  • 7/4/2014 7:51:12 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Fan

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

Pros: I got 2 at 1st, then got 3 more, and just got done ordering another 2

Cons: None

Other Thoughts: Works as it said , couldnt be more happier with them

Did you find this review helpful? Yes No

  • Justin W.
  • 7/4/2014 9:13:28 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsThey look good

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

Pros: Looks good, got on sale so it was priced well. Good airflow.

Cons: Both fans I purchased started squeaking after 3 months, I bought a fan speed controller and turned them down to 60%. I would've just purchased two more but it was an excuse to buy more stuff lol. Cooler master makes great stuff, but these are flawed. The second one started squeaking only about a week after the first. Maybe it was just my bad luck. Hope this helps!

Manufacturer Response:

Hello Justin W,

We apologize for the trouble that you are experiencing with the Sickleflow 120mm fan. The Sickleflow fans come with a 1 year warranty so we can replace them for you.

Please contact us by Phone or Live Chat.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • Nathan E.
  • 7/3/2014 11:16:33 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Fan, Better Price

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

Pros: I bought this because my front case fan died the other day and needed to be replaced. The box includes the Fan, 4 screws and a small pamphlet. The fan has significantly more fins than your standard fan and flows a good bit of air. It includes a signal wire, so if you have an extra input on your motherboard, you can monitor speed. Cooler Master indicates that the fan runs at 2,000rpm, but my MSI Control Center App shows a rotational speed of 1,840rpm.

My system temperature dropped by about 3 degrees after addition of this fan. Keep in mind that the old fan was on its way out so I can't attribute the temperature drop solely to the fan.

The LEDs aren't as bright as some other fans, but they do shine through the front of the case.

Cons: My biggest complaint is that the fan wire isn't very long. Since I was using it as a front case fan and wanted the signal to my motherboard, I was about as far away as I could get. The wire was barely long enough for a direct shot, leaving no room for wire management.

The other thing that bothered me was that I couldn't find a directional arrow on the side of the fan. Perhaps I looked right at it, but it wasn't obvious.

Other Thoughts: I picked this up for dirt cheap after the Mail in Rebate, so I'm not going to deduct any eggs for the above cons. I would buy it again and would recommend it to others.

Did you find this review helpful? Yes No

  • David B.
  • 7/2/2014 11:59:11 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsVery Loud

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

Pros: It dropped my GPU temps by 2 degrees.

Cons: It's the loudest case fan I've ever owned. The 19dBa noise level is a lie. It sounds like someone is blowing leaves outside my room nonstop.

Other Thoughts: If you are looking for a silent fan, this is not the one.

Manufacturer Response:

Dear Valued Customer,

We apologize for the trouble that you 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

  • Yunjoong K.
  • 6/25/2014 8:10:31 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsNice fan for the price

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

Pros: Price, on sale or with rebate the fan is cheap. Includes led, has decent airflow.

Cons: The wire on this is short, it won't reach from the case front to the motherboard.

The molex to 3-pin that is included never worked for me. The quality on it is junk as the prongs keep moving whenever the wires move, so trying to get it to line up, hold it, and then plug it into the psu was difficult. Not to mention that it didn't work.

Other Thoughts: Led is nice, its just basically led strips pasted onto the rear of the fan, so probably having it on the front wouldn't have been good looking anyhow.

Did you find this review helpful? Yes No

  • kevin w.
  • 6/22/2014 9:36:19 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsAnonymous Doesn't Know ...see below

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

Pros: Super quiet..... not to bright LED's ... 3 pin connection, works awesome with fan controllers ! Have 3 installed as exhaust in a small case and whisper quiet !!! Running at 1200rpm.

Cons: Nice fan shrouds...black with the blue LED light.... but they send them with silver mounting screws ... not a good match for most cases which are BLACK... thank goodness I had black ones laying around !!!!

Other Thoughts: Reviews from people who do not know what they are doing really shouldn't review products ( Anonymous on 6/14 within 4 minutes ( LOL ) !

Did you find this review helpful? Yes No

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Item#: N82E16835103060
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