Cooler Master 12cm Sickleflow Blue LED System Case Fan - (CM-R4-L2R-20AC-GP)

  • Case cooling is becoming more essential these days. Quality fans with better airflow inside your chassis will give you a more stable system.
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Stock Code: FG-013-CM

EAN: 4719512010402


Manufacturer: CoolerMaster

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Product information:

Cooler Master 12cm Sickleflow Blue LED System Case Fan - (CM-R4-L2R-20AC-GP)

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.

- 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.
- 120x120x25mm
- 2000rpm


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Customer review

67% (4)
33% (2)
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Star Rating

Average customer rating

(from 6 customer reviews)
All Time (6)

Great fan, great price

Needed a replacement fan, chose this due to previous good reviews, good price and the blue LED to match my other blue LEDs. Nice looking, light, very quiet with strong blue LEDs, installation was a little annoying as screws are self-tapping. But overall really good.

Ben West 2015-12-08

Huge CFM for the £!

I also bought 2 of these fans for my NZXT Lexa S case for the front and side door.
I bought it because of the huge 90 CFM rating, and low sound rating of 19db. (Also had cool LED's for a side fan)

Works great and is very strong. Nice LED colour (a shade darker blue than pictured) and black plastic. They look good on show!

I've attached these to an adjustable fan controller on the case, anything below 50% creates a strange noise (probably due to the lower voltage). I'd recommend plugging them straight into the motherboard to avoid this or crank the controller up.



Decent performance for the money , i am using this as my exhaust fan on the back of my case to pull heat from GPU and CPU , and the blue LED's make my case look funky :)


Awesome Fans

Brought 3 of these fans to replace some stock NZXT Lexa S case one and Im overall happy this the product. They run very well the blue LED is great. Nice glow inside the case. I have then turned down to 50% fan speed at the moment and they are managing to keep my FX6350 3.9Ghz at 29-33 on Idle. Just need to get the Kracken x60 and my build will be complete :) A must buy.


Very nice fan!

just installed this fan on the front of my cm690II case as the one that came with it eventually died! the fan is actually brighter and faster and the build quality is better, yes i know the other one was a coolermaster but its not half as good as this one!
if you want a blue fan at 2000rpm then get this one, you wont be dissapointed!!!
it has a 3pin and a 3pin - 4pin molex adapter is included


Decent performance

I bought one of these to replace a cheap fan i'd gotten for peanuts on ebay (probably exploiting a chinaman in the process) after said cheap fan exploded in my case and nearly caused a fire.

Aside from the fact that the cheap one made no difference to the heat in my case I resolved to get something decent.

First impressions: out of the box, the fan looks like it's been well made with a decent quality plastic and a sturdy looking cable, and the lighting effect is exactly as seen above which is nice!

Performace: nice and quiet and moves more air than you think. Didn't affect my cpu temps due to the big heatsink and fans on it, but my graphics card is cooler by 5-10 degrees on load which is prett impressive just for an exhaust

Rated this 4 stars as there is a minor audible rattle. Rubber screws would probably sort that out though

Adam 2012-01-06

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