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Cooler Master R4-L2R-20 120MM Red 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-20 120MM Red LED Case Fan 2000RPM 69CFM 19DBA 3/4 Pin - 1
Actual product may not be exactly as shown.
Cooler Master R4-L2R-20 120MM Red LED Case Fan 2000RPM 69CFM 19DBA 3/4 Pin - 54352_l.jpg Customer Photos (0)

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Our Price: $7.99  CAD

Savings Code 54352-1017. SAVE $3.51 off our regular price of $11.50 if you buy today! Special price ends soon.

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Part #: R4-L2R-20AR-R1

SKU: 54352
Shipping Weight: 0.2 lbs
Shipping estimated: $5.99 *
*Via ncix selected courier.

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Customer Reviews of COOLERMASTER R4-L2R-20AR-R1

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-20AR-R1 reviews.
Experience: 40 Days

Cheapest, quiet fan that moves the most air Verified OwnerVerified Owner


Moves a lot of air, cheap
Maybe it's louder than the noise rating suggests.

Good fan. does the job,. the price is right.

Experience: 1 Weeks

Nice colors Verified OwnerVerified Owner


Nice colors
Great airflow
Great static pressure
Acceptable noise level
Includes an adaptor to molex
Lights could be brighter
It comes with an adaptor to plug into molex, so, if you don't have any fan headers available on your motherboard, you can plug it to the power supply.

Experience: 1 Days

Good LED Fan Verified OwnerVerified Owner


Not to bright
Not to bright, but Ilike it.

Experience: 1 days


was very satisfied with my purchase. really suggest you buying them. they are also really quiet

Experience: 2 Days

Good value and somewhat silent


-Silent at lowest rpm (1200)
-moves air quite well
-Cable is not as long as corsair fans, I had to rearrange the fans on my case so the cable could reach the mother board connector
-LED is very dim
Brought down my overall temp by a couple degree. It does not add significant noise to my current build with corsair stock fans from H100i GTX

Experience: 2 Years

Silent and Cheap! Verified OwnerVerified Owner


Low fan noise
Fan's makes a whining noise when pushed at 40% or below
I have two of these for 2 years and just purchased some more recently for my new build. After 2 years of abuse (I don't turn my PC off at night) they do not make more noise or anything than the ones I purchased last week. The fans are shockingly quiet for their price. the LED's look good. The only issue I have about this fan is I have an NZXT Sentry 3 Fan controller and they make a whine noise at 40% or below, this controller controls the fans via voltage, so this could be the issue that it doesn't like to run on low voltage.
For the price I am yet to see better fans, and keep your eye out too, as sometimes coolermaster offers a $5 rebate on them bringing the price down to a mear $2.99

Experience: 3 Weeks

The best fans I've tried Verified OwnerVerified Owner


High cooling capability
Very silent
Kind of big if your case is small
Can't change LED color
Only 2 are enough to keep my setup a lot cooler than before without expensive water cooling.

Experience: 21 Days



Good quality fan

Experience: 4 Days

Good fan for the price Verified OwnerVerified Owner


- Silent
- Cools a lot
- The LEDs are not very bright
Good fan for the price, on sale were very worth it to put in the front of my new case.

Experience: 1 Months

Moves air, little noisy. Verified OwnerVerified Owner


Moves air
Cool light effect
Not to bright
Short cable
Loud at full bore
For $8 you can't go wrong

Product Videos [ Edit ]

Features [ Edit | History ]


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.

Quick Specs:
Air Flow 1 x 69.7 CFM
Application/Usage Case
Connectors 3-pin 4-pin
Fan Diameter 1 x 120 mm
Weight (Approximate) 4.09 oz
Fan Bearing Type Sleeve Bearing
Height 4.7"
Width 4.7"
Depth 1"
Number of Fans 1
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-20AR-R1
     Manufacturer Website Address:
     Product Line: SickleFlow
     Product Model: R4-L2R-20AR-R1
     Product Name: SickleFlow R4-L2R-20AR-R1 Cooling Fan
     Product Type: Cooling Fan
Heatsink Information  
     Mount Type: Screw Mount
     Connectors: 3-pin
     Application/Usage: Case
Physical Characteristics  
     Depth: 1" (25 mm)
     Fan Diameter: 1 x 120 mm
     Height: 4.7" (120 mm)
     Weight (Approximate): 116 g
     Width: 4.7" (120 mm)

NCIX Forum Messages

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

Are these really 19 dB? (OpTickal- Mar 25, 12, 4 Replies)
Will 2 of these light up a case? (gaf_o- Aug 06, 11, 4 Replies)
LED Switch (Curtis_V- Oct 06, 10, 2 Replies)
90CFM or 69CFM? (LMB- Sep 17, 10, 5 Replies)
3 of these or 3 Yate loons (red/black) for a tri- (theflyingdutchman- Jul 17, 10, 1 Replies)
Linus - Different Packages Info (Smoothie- Jul 11, 10, 8 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

Sales Policy

All pricing subject to change. For all prices, products and offers, reserves the right to make adjustments due to changing market conditions, product discontinuation, manufacturer price changes, errors in advertisements and other extenuating circumstances. Promotional offers from are subject to availability and are available only while supplies last. No rain checks will be issued on promotional items and offers.

While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages (excluding laptops and notebooks), from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

NON-DEFECTIVE merchandise returns may be accepted on some items ONLY within 15 days of the Invoice date, at's discretion. Laptops and Notebooks can be returned within SEVEN (7) days from original invoice date. Return will only be accepted with original packaging, accessories, cables, free gifts (if applicable), unopened software and manuals and is subject to inspection before warranty approval. Laptop and notebook with tampered serial numbers or UPC code will be denied returns.

GOVERNMENT & BUSINESS Laptop and Notebook purchases made with government or business POs can be returned typically within fourteen (14) days from original invoice date. Return will only be accepted with original packaging, accessories, cables, free gifts (if applicable), unopened software and manuals and is subject to inspection before warranty approval. Laptop and notebook with tampered serial numbers or UPC code will be denied returns. Please check with your B2B sales representative for specific terms and details.

All NON-DEFECTIVE returns are subject to a 15% restocking fee. No refunds will be issued for blank media, digital camera (and accessories), opened software, printers, printer supplies, paper, projectors (and accessories), appliances, handhelds, PDAs, notebook computers, special order computers and special order items.

Defective software, video games or DVDs will be replaced by the SAME title and format ONLY (and subject to current availability) within 30 days of the Invoice date. Software, Drones, video games and DVDs may be returned within 30 days only if the item is UNOPENED (with shrink wrap still intact) at the sole discretion of does NOT apply a surcharge to credit card orders. Please read our RMA & warranty policy and terms & conditions for more information. If you have any questions regarding our sales and warranty policies, please send us a message -- we'll be glad to answer any of your questions.

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