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Cooler Master R4-C2R-20AC-GP 120mm Long Life Sleeve Bearing No LED 2000RPM Black Cooling Fan

This product can only be exchanged or replaced with the exact same item.
Cooler Master R4-C2R-20AC-GP 120mm Long Life Sleeve Bearing No LED 2000RPM Black Cooling Fan - 1
Actual product may not be exactly as shown.
Cooler Master R4-C2R-20AC-GP 120mm Long Life Sleeve Bearing No LED 2000RPM Black Cooling Fan - 61078_l.jpg Customer Photos (0)

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Reg. Price: $8.99  CAD
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   Shipping Weight:   0.2 lbs
   Part #: R4-C2R-20AC-GP
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Features    [ Edit | History ]
Quick Specs:
Air Flow 1 x 69.7 CFM
Application/Usage Processor
Connectors 3-pin TX3
Fan Diameter 1 x 120 mm
Weight (Approximate) 4.09 oz
Fan Speed 1 x 2000 rpm
Fan Bearing Type Sleeve Bearing
Height 4.7"
Width 4.7"
Depth 1"
Number of Fans 1
Green Compliant Yes
Green Compliance Certificate/Authority RoHS

Specifications    [ Edit | History ]
Fan Information  
     Air Flow: 1 x 69.7 CFM
     Fan Bearing Type: Sleeve Bearing
     Fan Speed: 1 x 2000 rpm
     Number of Fans: 1
General Information  
     Brand Name: Cooler Master
     Manufacturer: Cooler Master Co., Ltd
     Manufacturer Part Number: R4-C2R-20AC-GP
     Manufacturer Website Address:
     Product Name: Long Life Cooling Fan
     Product Type: Cooling Fan
     Connectors: 3-pin TX3
     Application/Usage: Processor
     Green Compliance Certificate/Authority: RoHS
     Green Compliant: Yes
Physical Characteristics  
     Depth: 1" (25 mm)
     Fan Diameter: 1 x 120 mm
     Fan Location: Side
     Height: 4.7" (120 mm)
     Weight (Approximate): 116 g
     Width: 4.7" (120 mm)
Power Description  
     Input Voltage: 12 V DC

COOLERMASTER R4-C2R-20AC-GP Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding COOLERMASTER R4-C2R-20AC-GP reviews.
Experience: 14 Days
 Verified Owner
Great cooling
none yet
Cooler master make reliable products. I am a fan of 120 mm fans, they move more air for the amount of noise.

Experience: 1 Months
 Verified Owner
These push a good amount of air at full power... but... see cons >
This product gets 3 stars because of how LOUD they are, exactly like another reviewer stated "they sound like a jet engine" when at full power. I had to plug them into a fan controller just to dial them down to a bearable level.

Overall, they still push air but cannot be the same db level they claim... and having to dial them down with a fan controller means I am not able to gain their full cooling potential.

Experience: 2 Months
 Verified Owner
Lots of air flow
load if on full do not come with fan controller.
Put 2 of the in a coolermaster case and had to put fan controllers on them because they were too loud. I turned them down halfway much quieter now and still have great air flow.

Experience: 5 Days
 Verified Owner
Comes with 3 pin-Molex Connector
Moves a decent amount of air
LOUD! Holy cow....There's no way these can be the DB rating they have. I put 2 of them into my CM690 II case to replace 2 failed Yate Loon's that are rated at a higher DB. These things sound like rocket ships taking off, I had to take them out just after a couple hours of use. I'd have thought it was defective but both fans I have produce the same level of sound.
Moves air decently, but SO loud. Maybe my perception of "loud" is warped but I will never get one of these again.

edit: I've since plugged the fan in while holding it in my hand and it is whisper quiet. As soon as I mount it to the side panel it sounds like a jet engine. =(

This review was modfied by poster @ 01-26-13 02:35 PM

Experience: 2 Weeks
 Verified Owner
Fairly quiet
Moves lots of air
Using this fan as an exhaust in the back of my CM690II Advanced case. Its louder than the stock fans but it spins twice as fast at 2000rpm and moves way more air. Was able to price match it down to $5 so is a great deal for a inexpensive, effective fan.

Experience: 7 Days
 Verified Owner
Moves air like it's supposed to
Would purchase again for sure, it was used in my roommates computer as an intake and it helped drop  his ambient temps quite nicely. I have 2 of the green LED version, one added to my Hyper 212 Evo as a pull fan and it works awesome, the other is used as intake like my roommate. 4stars

Experience: 6 Weeks
 Verified Owner
I bought these for a NAS system that I wanted to keep cool. So far I have had no problems with these fans. I price-matched them down to $5 and at that price, it's an awesome deal. They've been running quietly and very effectively.

Experience: 1 Days
 Verified Owner
Lot of air goes through
Screws they came with are silver.
It seems that the fans can only be used as exhaust. I tried putting one as intake and noise level was horrible even at 1000RPM. At 2000rpm I was grinding my teeth.
At 200rpm as exhaust I could hear them but it was not bad at all. When I am not using PC for anything resource heavy I turn them down to 100rpm at can barely hear anything.
The screws should have been black. But that's a small thing.
Otherwise I am pretty happy. I ran a test for 1 hour maxing out CPU and it barely got above 45C with this fans sucking the hot air away. That's the important thing for me.

Experience: 20 Days
 Verified Owner
Quiet and move air well
cheap and quiet. great buy for the price.

Experience: 1 Days
 Verified Owner
120cm, silent, fast
I am waiting for fan to come. I was able to get less than the msrp that it was selling for right now

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Messages about Cooler Master R4-C2R-20AC-GP 120mm Long Life Sleeve Bearing No LED 2000RPM Black Cooling Fan

Why is the shipping weight so much heavier? (dragoonxx- May 19, 11, 2 Replies) Read this message
this seems way to good for the price (devan_w- May 07, 11, 3 Replies) Read this message

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Product Warranty
First 30 days limited warranty through The remainder of the one year warranty is provided directly by the manufacturer.

Support For USA, Canada, & Mexico 
Cooler Master USA, Inc.
Unit A - 1951 S Parco Ave.
Ontario, CA

Phone: 1-909-673-9880
Fax:  1-909-673-9882 or 9883

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