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Cooler Master R4-L2R-20AC 120mm Blue LED Case Fan 2000RPM 69CFM 19DBA 3/4 Pin

This product can only be exchanged or replaced with the exact same item.
Cooler Master R4-L2R-20AC 120mm Blue LED Case Fan 2000RPM 69CFM 19DBA 3/4 Pin - 1
Actual product may not be exactly as shown.
Cooler Master R4-L2R-20AC 120mm Blue LED Case Fan 2000RPM 69CFM 19DBA 3/4 Pin - 42176_l.jpg Customer Photos (0)

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Our Price: $7.99  CAD

Savings Code 42176-1685. SAVE $3.99 off our regular price of $11.98 if you buy today! Special price ends soon.
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SKU: 42176
Shipping Weight: 0.1lbs

Part #: R4-L2R-20AC-GP

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Product Videos [ Edit ]

Features [ Edit | History ]

Quick Specs:
Air Flow 1 x 69.7 CFM
Application/Usage Case
Connectors 3-pin TX3
Fan Diameter 1 x 120 mm
Weight (Approximate) 4.09 oz
Fan Bearing Type Sleeve Bearing
Height 1"
Width 4.7"
Depth 4.7"
Number of Fans 1
Green Compliant Yes
Green Compliance Certificate/Authority RoHS
Fan Speed (rpm) 1 x 2000 rpm

Specifications [ Edit | History ]

Fan Information  
     Air Flow: 1 x 69.7 CFM
     Fan Bearing Type: Sleeve Bearing
     Fan Speed (rpm): 1 x 2000 rpm
     Number of Fans: 1
General Information  
     Brand Name: Cooler Master
     Manufacturer: Cooler Master Co., Ltd
     Manufacturer Part Number: R4-L2R-20AC-GP
     Manufacturer Website Address:
     Product Name: Long Life LED Case Fan
     Product Type: Cooling Fan
     Connectors: 3-pin TX3
     Additional Information:
  • Fan with Blue LED

     Application/Usage: Case
     Green Compliance Certificate/Authority: RoHS
     Green Compliant: Yes
Physical Characteristics  
     Depth: 4.7" (120 mm)
     Fan Diameter: 1 x 120 mm
     Fan Location: Side
     Height: 1" (25 mm)
     Weight (Approximate): 116 g
     Width: 4.7" (120 mm)
Power Description  
     Input Voltage: 12 V DC

Customer Reviews of COOLERMASTER R4-L2R-20AC-GP

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-L2R-20AC-GP reviews.
Experience: 4 Days

Very good fan. Verified OwnerVerified Owner


It moves lots of air.
A bit noisy with regards to airflow but that could be case realted.
I bought this fan to provide improved cooling to a case that was running a bit warm and replacing the rear stock fan with this one made a massive improvement. I do find it a bit noisy with regards to "air flow noise" but it keeps it cool and was cheap so I am happy with it.

Experience: 4 Years

Great and nice look! Verified OwnerVerified Owner


Love the LED blue color
Durable and last long
I purchased a few 4 years ago and only one burned out but it was my fault for not cleaning it.
Not that much noisy
Easy to install and also easy to clean
Good cheap price
Makes a bit of noise but for me it's not a problem and it's not that bad.
Bought a few of these 4 years ago because I wanted blue LED and a good price. One burned out so I purchased a few more and got one extra for back up and also replace the one that came with the case that I never changed. Will definitely purchase these again!

Experience: 2 Months

its great fan for that price Verified OwnerVerified Owner

its great if have rpm controller 2000 is bit loud

Experience: 1 Weeks

cool fan Verified OwnerVerified Owner


has led

Experience: 30 Days

Bought 5, Easy install Verified OwnerVerified Owner


Easy install, they are fans
Little noisy at full speed
Good product!

Experience: 3 Years

Good fan for the price


-Airflow is decent
For the price of $7, it's worth it if you want to fill your case with fans. Had this fan for a few years on my old case, has worked fine over the years.

Experience: 1 Weeks

Buy for the price or look, not for its performance Verified OwnerVerified Owner


- Good looking, black with blue LEDs
- Reasonably cheap
- Loud at full speed
- Motor noise at low speed
- Low build quality, flimsy plastic and sleeve bearing
This is an okay fan, definitely a step-up from most fans bundled with most cases but it is by no means a high quality one.

It is quite loud at full speed (even more, in my opinion, than the 2000 RPM speed would suggest), and produce some annoying motor noise at lower speeds.

It does the job, but I would only recommend this fan for its low price and look. Look elsewhere for silent builds or if you want something that will last.

Experience: 2 Months

great fan for price


cheap $7 on sale
lights up
kind of cloud (especially running 2 for front intake)
draws a lot of air
kind of loud tho
i bought 2 and 1 was defective got it replaced tho

Experience: 3 Months

Great fan


Moves air very well
2000 RPM
The LED's don't illuminate very well
Great fan that moves air very well, the only thing I don;t like very well is the LED's don't illuminate very well. The LED's only shine along the LED strips they are on, which can be good or bad depending what you want

Experience: 5 Days

Ok Fans


Cheap, work, decent airflow and good lighting
Very loud, especially as intake
They were ok at best. If you have a fan controller then they'd be good.

NCIX Forum Messages

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Messages about Cooler Master R4-L2R-20AC 120mm Blue LED Case Fan 2000RPM 69CFM 19DBA 3/4 Pin

Were these on sale not long ago for $2.99 each ? (NoSeagate- Jul 21, 13, 6 Replies)
Antec Tricools (JeanClaudeVanDamme- Mar 24, 12, 6 Replies)
69CFM and 19DBA... Really? (Andrew M- Jan 16, 12, 6 Replies)
Zalman case Z9 series? (Metallium30- Sep 26, 11, 1 Replies)
fan controller? (alick_l- Aug 31, 11, 0 Replies)
Fans make strange noise. (Hills- Aug 28, 11, 6 Replies)
2 of these in one header (Raymond_W- Jun 08, 11, 2 Replies)
retro sale price? (zallow- May 24, 11, 3 Replies)
Good replacement for corsair cooling H70 ? (Sébastien_G- Mar 25, 11, 2 Replies)
Thermaltake V3 fit (littlewicky2- Mar 23, 11, 2 Replies)
Taking the LEDS off? (Noodah Man- Jan 10, 11, 3 Replies)
Very loud fan. How can I undervolt it? (dan_s- Jan 09, 11, 12 Replies)
A word of warning for those with the CM690 (-=SiDeWinDeR=-- Dec 01, 10, 4 Replies)
Good Replacement? (Catherine_L- Nov 28, 10, 2 Replies)
3 to 4 pin adapter ? (qewcool- Jun 03, 10, 2 Replies)

Post a New Message  |    All Messages       Browse NCIX Forums

Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.

Reviews from the Web

Submit a review link   |   Latest 30 reviews

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
4820 Schaefer Ave.
Chino, CA 91710

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

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