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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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  • 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

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  • 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.

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  • 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)

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  • keenan q.
  • 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

  • Lawrence L.
  • 10/9/2013 6:48:06 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsMobo control for FM121

Pros: With a couple of"store bought" "wiring harnesses", 2 of these fans now controlled from Asus mobo and Asus Fan Xpert2 software, rather than manually controlled. Didn't have an open slot in front for the manual controller, and besides, wanted it a bit automated.

Cons: Didn't have the molex pins, holders, etc., nor the eyesight, to build myself. Easier to buy a harness ready made then drag out soldering iron, heat gun, etc., etc.

Other Thoughts: ASUS Z87-Deluxe LGA 1150 Intel Z87 mobo has a number of fan headers, using 2 to control 2 front fans in a Fractal Design Define XL R2 case (bypassing the Fractal case's manual fan controller). But these fans (original included fan + Vortex fan) weren't forcing enough air when things got hot.

Wanted to mount 2 of the FM121 fans up front to be able to FORCE air over the hdd's (seems like most cases "pack 'em tight" in the hdd cages), and have the fans' speeds controlled from the Asus Fan Xpert2, just like the fans I had in there. But the FM121's seemed designed for only manual control via their included manual controller.

Google "Aquacomputer Pump Connection Cable for Poweradjust 2 and Aquaero Series (53053)"; mine came from "frozen" (newegg doesn't carry). Unlike the intended use, running "backwards" works just fine:
1. 3-pin female connector attaches to mobo
2. 1-pin male (in 3 pin housing) connects to "speed sense" wire from fan (yellow wire in fan picture)
3. Molex power connector attaches to fan's molex power connector
4. I bridged the fan's 2 contoller male pins (black wire with white connector closest to fan in fan picture) with a jumper (back in the IDE hdd days, used to be included with every hdd. Had bought a parts kit awhile back, and a number of jumpers were included. Fit perfectly.)

Ran the Asus Fan Xpert2 to tune the fans, then set up their temp/speed curves.

Bottom line, this fan can be controlled from a mobo, eliminating the manual control, if desired.

Did you find this review helpful? Yes No

  • Daniel K.
  • 9/18/2013 6:33:24 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsnice fan, bad controller

Pros: good fan, easy controller

Cons: I dont think much thought was put into the design of the fan controller. I tried to install it into a raidmax smilodon and was not able to mount the controller securly. The tabs with the screw holes are maybe an inch and a half long which will allow it to be mounted flush with the face of the metal case, not the bezel. To mount it securely to the raidmax case you would have to reach inside the bezel to adjust the speed control.

Other Thoughts: this fan does what it is supposed to do and the fan controller works and does what it is supposed to do. I really think the mounting bracket was an afterthought that was just thrown in.

Did you find this review helpful? Yes No

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Computer Hardware > 
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Case Fans > 
Silverstone > 
Item#: N82E16811999344
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