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

| 20 answered questions

List Price: $21.70
Price: $7.99 & FREE Shipping on orders over $35. Details
You Save: $13.71 (63%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
Red
  • 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
34 new from $5.80 3 used from $0.99

Frequently Bought Together

Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED Silent Fan for Computer Cases, CPU Coolers, and Radiators + Cooler Master Hyper 212 EVO - CPU Cooler with 120mm PWM Fan (RR-212E-20PK-R2) + WD Blue 1 TB Desktop Hard Drive: 3.5 Inch, 7200 RPM, SATA 6 Gb/s, 64 MB Cache - WD10EZEX
Price for all three: $96.01

Buy the selected items together


Special Offers and Product Promotions

Color: Red
  • Buy Used and Save: Buy a Used "Cooler Master SickleFlow 120 - Sleeve Bearing 120m..." and save over 90% off the $21.70 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.
  • Get a $100 Amazon.com Gift Card: Get the Discover it chrome card and get a $100.00 Amazon.com Gift Card* after your first purchase within 3 months. Learn more.

Product Details

Color Name: Red
  • Product Dimensions: 4.7 x 4.7 x 1 inches ; 4.2 ounces
  • Shipping Weight: 4.8 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B0046U6DTC
  • Item model number: R4-L2R-20AR-R1
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (1,499 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: October 11, 2010
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Product Description

Color: Red

The Cooler Master R4-L2R-20AR-R1 R4 Series Case Fan, with its dazzling red LED design, fits into any 120mm port in your chassis. Not to mention, the Cooler Master R4-L2R-20AR-R1 R4 Series Case Fan also features 50,000 hours of operation.

Customer Questions & Answers

Customer Reviews

These fans look and work great.
LusH-KiLL
The blue of the LED's is a nice dark color and looks good with the other blue lights of my computer.
Michael P. Barner
Fans are quiet and move lots of air.
Marie Daniels

Most Helpful Customer Reviews

77 of 87 people found the following review helpful By Wolvesland on August 4, 2009
Color Name: Blue
Its a fan. It spins and makes pretty blue lights. It does its job. Not too noisy.
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20 of 20 people found the following review helpful By Jaime Llamas on March 30, 2010
Color Name: Smoke Verified Purchase
I love the fan works great!!!! The only thing is on Amazon it say its a 90CFM but it's a really 69CFM Fan !!!!!!
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56 of 65 people found the following review helpful By J. J. Barinas on November 30, 2009
Color Name: Blue Verified Purchase
I bought 2 of these to replace the fans that came in my case. I am very happy with these so far. They are very quiet and move plenty of air.My case temp hit about 40c tops with the fans set at the lowest speed setting in the BIOS.I have 2 Radeon 4770 cards running in crossfire mode, as well as having my system overclocked.
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38 of 43 people found the following review helpful By J. Giussi on October 8, 2009
Color Name: Blue Verified Purchase
When you buy a cooler master product you know you can't go wrong. I bought one of the 120mm green led fans plus one with red leds and another one with blue leds. They work like a charm. Quiet and reliable. I'm very happy with them and I'd recommend them to anyone.
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37 of 44 people found the following review helpful By D.L.C on October 10, 2009
Color Name: Smoke Verified Purchase
The Good:
Light, almost entirely made of super light plastic.
Lots of blades for air movement
In my opinion, no LEDs which attracts bugs at night. Nothing more fun then finding spiders and insect bodies on the bottom of your case! (Sarcasm if you missed it)
Potential 90 CFM. For a 120 mm fan, that's awesome.
Comes with 3 pin converter to Molex (4 pin)

The Bad:
Somewhat loud, but hardly as bad as some other fans. 19 Decibels isn't bad.
Not free?

Conclusion:

Excellent buy for the price. Hard to find another 120 mm case fan that moves that much air for the same price.
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23 of 28 people found the following review helpful By Gerald G. on April 7, 2010
Color Name: Blue Verified Purchase
These fans are by far the quietest that I have tried. I have five different makes of similar type fans and none are as quiet as these. They still move a surprising amount of air and I have installed six of them in two computers now. Mine have run for about a month at this time.
One thing I've noticed, and this is true of my other make fans to a lesser degree, is that placing the inlet side of the fan against a grille will cause a whine---they must be spaced a little away to avoid this. A grille on the outlet side doesn't have this effect.
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6 of 6 people found the following review helpful By Dan W on November 9, 2009
Color Name: Blue Verified Purchase
I didn't think I was going to get much quality for $10, but I was pleasantly surprised. This fan does provide a nice amount of air and is very quiet. I used these after using some Antec Tri Cool fans and the fan is a lot dimmer in light output which I find as a plus. You can still see the light but it won't light up a room at night. It does not have a speed switch like my previous Antec, but since it's so quiet it's not really an issue.
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11 of 13 people found the following review helpful By Heelz on May 22, 2009
Color Name: Smoke Verified Purchase
Just got two of these today and installed them. They are a little noiser than the masscool 120mm fans that were inside previously. I will say due to the higher air flow rate they cooled my cpu and MB temps by about 3 maybe 4 degrees. So for the money I paid they are a decent deal, it would be nicer if they came with a fan control to lower their r.p.m. to reduce some noise.
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