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Cooler Master > 
Item#: N82E16835103025

Cooler Master Rifle Bearing 80mm Silent Cooling Fan for Computer Cases and CPU Coolers

  • 80mm
  • 2000 ±10% RPM 28.89 CFM
  • Rifle
  • 20.9 dBA
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Case cooling is becoming more essential these days. The better airflow inside your system, the cooler and more stable system you will get.

  • newegg High Performance The COOLER MASTER R4-S8R-20AK-GP delivers up to 28.89 CFM of air flow to efficiently and effectively dissipate the heat inside the chassis.
  • newegg Silent Operation This case fan runs at 2000 R.P.M. ± 10% and produces merely 20.9 dBA noise level bringing peace of mind to you and your co-workers.

Learn more about the Cooler Master R4-S8R-20AK-GP

Model

Brand
COOLER MASTER
Model
R4-S8R-20AK-GP

Spec

Type
Case Fan
Compatibility
Case
Fan Size
80mm
Bearing Type
Rifle
RPM
2000 ±10% RPM
Air Flow
28.89 CFM
Noise Level
20.9 dBA
Power Connector
3 / 4 Pin
Color
Black

Physical Spec

Dimensions
80 x 80 x 25mm

Features

Features
Higher air flow to enhance cooling performance.
Silent operation for case cooling.
RoHS compliance for protecting the environment.

Package Contents

Package Contents
Case Fan
3 to 4 Pin Adapter
Bolts

Quick Info


Customer Reviews of the Cooler Master R4-S8R-20AK-GP

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  • mark c.
  • 7/20/2014 12:02:17 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsCooler Master fan

Pros: Very quiet and moves a good deal of air.

Good brand name.

Cons: None

Other Thoughts: I purchased a Cooler Master rifle bearing fan 10 years ago and it is still running 24/7 in one of my pc's , if this one runs half that long I will be happy with the results.

Did you find this review helpful? Yes No

  • Donald B.
  • 3/27/2014 5:51:08 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Quite fan.

Cons: None.

Other Thoughts: Would buy one again.

Did you find this review helpful? Yes No

  • William G.
  • 1/31/2014 3:00:02 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNice

Pros: Used these in the bottom of my HAF XB EVO and they move a good amount of air quietly!

Cons: No complaints

Did you find this review helpful? Yes No

  • Alexander M.
  • 1/11/2014 4:53:22 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood Case Fan

Pros: Does what it's supposed to. Very low noise.

Cons: Cable is very short for reaching motherboard fan connector. Just barely reaches in my case.

Other Thoughts: Good choice for a quiet PC.

Did you find this review helpful? Yes No

  • Charles F.
  • 1/4/2014 8:16:31 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsCooler Master 80mm Rifle Bearing Slent Fan

Pros: Nearly 6 year life if the computer is run 24/7. Decent price.

Cons: Was not suitable for me. Whining noise at full speed.

Other Thoughts: I could put in a fan controller or a resistor to lower the speed and hope the whining noise goes away. However, I should not have to go to that bother. It's not overly bad, it would just annoy me if I had to sit next to it. I used a Vantec Stealth 80mm Double Ball Bearing Silent Case Fan in its place which is not exactly silent either but did not have the annoying whine. Probably if you have an 80mm fan and you want quiet you have to use a fan controller. By the way, this replaced a MassCool fan that was a little loud.

Did you find this review helpful? Yes No

  • Garrett N.
  • 6/5/2013 9:39:01 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsdecent

Pros: worked

Cons: none

Did you find this review helpful? Yes No

  • James K.
  • 3/21/2013 8:26:44 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsCOOLER MASTER R4-S8R-20AK-GP

Pros: Reasonably quiet fans. Inexpensive.
3 pin-to-molex adapter cable and mounting screws included.

Cons: None.

Other Thoughts: Had an old mid tower computer with 3 Antec 80 mm fans in it. The rig was always loud but compared to my newer computers this one sounded like a vacuum cleaner.

I refurbished the machine for a friend to use and replaced the old fans with three of these. It is now much quieter than it used to be. These CM fans seem to make about one third less noise than the old Antec fans.

Did you find this review helpful? Yes No

  • Matthew W.
  • 12/30/2012 7:28:21 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsIt's a fan, and it spins

Pros: the blades spin, thus moving air.
it's relatively quiet (no louder than the OEM intel cpu cooler on my i3) IF I need another 80mm fan, I'll probably get another one of these.

Cons: none

Did you find this review helpful? Yes No

  • Douglas N.
  • 12/9/2012 9:23:16 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsCOOLER MASTER R4-S8R-20AK-GP

Pros: Quiet, does a good job.

Cons: none

Did you find this review helpful? Yes No

  • Todd R.
  • 9/11/2012 7:56:38 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

3 out of 5 eggsalmost quiet

Pros: fairly quiet, low power draw, 3pin.

Cons: air flow noise, mediocre airflow, 3pin.

Does not come with Molex pass-thru, just Molex plug so it consumes one of your PSU plugs (if you power from PSU direct). 3pin means it's not PWM controlled fan, but Asus mobos have analog DC controllers for non-PWM fans - nice!

Other Thoughts: First off, this is an 80mm fan which means it needs to spin really fast to make decent airflow. Really fast means really noisy. This fan is none of those things. It spins ~1900rpm, making very little noise in the process, but also not moving a lot of air.

It's not noisy per se, but does have a distinct sound of airflow. Funny, because it's not pushing a ton of air! It's generally not noticeable but if in a quiet room, with other quiet components it might bother you.

Overall, for an 80mm fan it is quiet.

see my review of N82E16835214016 to help decide which characteristics you can live with.

Manufacturer Response:

Hi jbeebo,

We are sorry to hear that you were having some trouble with the 80mm fan. The molex pass through should be provided by the psu or purchased separately. Fans do not provide this on its own. Can you clarify more on how the fan is not moving a lot air while running at 1900 RPM. Please contact us on live chat if you have any questions. Link below.

Respectfully,
CMUSA Customer Support

1 out of 3 people found this review helpful. Did you? Yes No

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Item#: N82E16835103025
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