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Silverstone > 
Item#: N82E16811999344

SILVERSTONE FM121 120mm Case Cooling Fan

  • 120mm
  • 800 - 2400 RPM Max 110.03 CFM
  • 2 Ball
  • 17-39.5 dBA
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Defend your PC against the destructive forces of heat, and halt system meltdowns with the Silverstone FM121 Cooling Fan. For gamers and overclocking-enthusiasts alike, incorporating this fan into your system’s cooling regimen means big-time gains in performance and protection.

This mighty dual ball-bearing fan, amply equipped with 120mm blades, safely ushers damaging excess heat away from your PC’s sensitive components at a rate that zooms to over 110 cubic feet per minute! On the low end, this fan sports a whisper quiet 17 dB of sound generated at 800 RPM, which builds up to 39.5 dB at 2400 RPM in the throes of intense system action. This fan is packaged with a stylish aluminum fan controller so that you can optimize your fan’s cooling, and tailor it to suit your needs.

In addition to neutralizing harmful thermal energy with its hefty white blades, this case-compatible fan keeps dust and other particulate matter from settling in your PC. For the serious PC enthusiast, protect your PC from the rigors of extreme use with this formidable cooling fan.

  • newegg Unique 9-Blade Design The innovative 9-blade SilverStone FM121 provides supreme cooling and elevated quietness.
  • newegg Silence or Power in One Unique Package The SilverStone FM121 produces an ultra-low 17dBA noise level at 800rpm and boosts airflow to up to 110CFM at the maximum 2400rpm for incomparable cooling performance.
  • newegg Stylish Aluminum Fan Controller The included aluminum fan controller enables convenient fan speed adjustment to fit any given application with its outstanding aesthetic design to show your exclusive style.

Learn more about the Silverstone FM121




Case Fan
Fan Size
Bearing Type
2 Ball
800 - 2400 RPM
Air Flow
Max 110.03 CFM
Noise Level
17-39.5 dBA
Power Connector
3 / 4 Pin
White Fan, Silver Panel

Physical Spec

120 x 120 x 25mm


The FM121 is a superb 120mm fan package with manual adjustable fan controller. Equipped with 9 fan blades, it offers elevated quietness and performance levels beyond traditional 7 bladed fans. Finding a perfect speed for this fan in any given application is simple on the included aluminum fan controller. Constructed out of high strength white colored plastic and polished to a smooth shine, the FM121 is the ultimate solution for any PC and HTPC enthusiasts looking to upgrade their 120mm fan.

Package Contents

Package Contents
Case Cooling Fan
Fan Grill
Fan Speed Controller

Manufacturer Warranty

1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 0 day

Customer Reviews of the Silverstone FM121

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  • Joseph P.
  • 8/17/2014 3:10:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

3 out of 5 eggsBatting .500

Pros: Fan #1 - Quiet, moves air well, includes a steel grill. Comes with it's own speed controller.

Cons: Fan #2 - Continuously revs up and down. Could be either the fan itself or the speed controller, but I simply disconnected it rather than investigate it. A little difficult finding a good place to mount the speed controller.

Other Thoughts: 5 Eggs had both worked ok. I debated giving 4 eggs, knowing that I always get the one bad one in a bunch...
The second one sounded like a teenager revving his engine at a stop light. The first one is nice and quiet at a fairly low speed, and is quieted than I would have expected at higher RPM's.

The steel grill is nice for a fan mounted in the bottom of the case to help supply air. Make it just a touch harder for anything to drop into the blades. The white plastic is just a touch off-white.

Long lead wires.

Since it's extremely unlikely that 50% of their products have issues, this would still be a good choice as an additional case fan.

Did you find this review helpful? Yes No

  • Harry S.
  • 8/2/2014 6:28:55 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsI love these fans! (But they are a bit loud)

Pros: These are great case cooling fans at 100+ CFM, but they are a bit loud. They can be slowed down with a trim-pot to make them more quiet but that also reduces the CFM. All in all, a first choice for me from now on for 120mm case cooling fans. I've installed four of them on one case and will likely use another four to upgrade another case I have. Excellent fans.

Cons: Loud. Noisy. But that's to be expected at the high RPM you need in a 120mm fan to push out 100+ CFM. I'm used to it but not everyone can tolerate it.

Other Thoughts: The fact that they include a trim-pot to dial down the RPM's and thus quiet the noise is a very thoughtful decision on the part of the manufacturer. These are now a first choice for me for 120mm case cooling fans or for any high CFM application. I've even rigged one of these up to cool my DSL modem for my internet connection. The modem tends to run hot. I just added an old power supply and jumpered the 24-pin connector with a bent paper-clip. The P/S has an on/off switch for when I'm trying to sleep since the modem is in my bedroom.

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

  • Francois B.
  • 6/20/2014 6:06:23 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsFAN

Pros: Moves alot of air, does not make lots of noise.

Cons: none no cons

Did you find this review helpful? Yes No

  • Donnie H.
  • 5/13/2014 11:34:17 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSILVERSTONE FM121

Pros: pushes alot of air good fan at not a bad price

Cons: alittle loud and i dont have a place for the fan controller on my case also the cables are a little difficult to manege.

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

  • Michel H.
  • 5/11/2014 10:29:17 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsAwesome

Pros: It move some air

Cons: A little noisy

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  • Robert A.
  • 3/6/2014 6:56:53 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAmazing CFM, loud

Pros: Amazing fan, with excellent CFM. This fan can move air and cool a PC well!


Cons: Loud :D

Other Thoughts: I don't use the included fan controller that came with this fan. I use an aftermarket one I have installed in my case. At lower RPM these fans work well and similar to cheap case fans, quiet too. When doing intensive work, or BTC mining :D, rev these fans up and watch them scream! But they will cool even the hottest video cards.

Did you find this review helpful? Yes No

  • Stetson S.
  • 1/28/2014 12:43:10 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsMoves a lot of air

Pros: Moves a ton of air.
Cables are nice and long.
Solid fan controller

Cons: No PWM (but I knew that ahead of time)
Extremely loud at high speeds

Other Thoughts: I bought this as an exhaust fan and it's just about perfect for that. I didn't have any slots for the fan controller, but since the cable is so long, I was able to break off the supports and secure it flat to my desk. The only real issue I've had with it is the noise it makes at high speeds. Granted, a large portion of that noise is air movement, but a definite coil whine can be heard. It's loud enough at max speed that I can hear it over what I'm watching on my headset. Luckily, the fan performs so well that I rarely have to turn it up past half speed. (Usually, it only goes past half if my CPU is going to be sitting at 100% for more than a few minutes)

Did you find this review helpful? Yes No

  • bi g.
  • 12/1/2013 7:27:10 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year

4 out of 5 eggsIt's okay...

Pros: Fans move lots of air. Comes with fan controller. Comes with fan grills.

Cons: I hate it that it has three wires coming out the fan. It messes up with my wire management, only if it had a 3 -4 pin like the other fans. Fan controller doesn't fit anywhere in my case. It's nice that silverstone supplies a fan controller, but i got no where to put it.

1 out of 2 people found this review helpful. Did you? Yes No

  • Brian M.
  • 10/25/2013 1:25:10 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month

5 out of 5 eggsGreat fan

Pros: Fan controller is a plus
Quiet all the time (and let's be honest this probably won't ever run at max rpm unless you need crazy cooling)

Cons: Erm it doesn't come in a pack of 10 for the price of one?

Did you find this review helpful? Yes No

  • Kelly G.
  • 10/19/2013 4:50:22 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsDead already

Pros: Moves a lot of air. Quiet. Easy to install.

Cons: Dead in less than 4 months.

Did you find this review helpful? Yes No

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Case Fans > 
Silverstone > 
Item#: N82E16811999344
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