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Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob

This product can only be exchanged or replaced with the exact same item.
Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob - 1
Actual product may not be exactly as shown.
Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob - 19675_l.jpg Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob - 19675_1.jpg Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob - 19675_2.jpg Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob - 19675_3.jpg Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob - 19675_4.jpg Customer Photos (0)
Silverstone Technology
Reg. Price: $18.98  CAD
In Stock

This item is in stock and will ship as soon as possible. Usually ships in 4-8 business days. Only a few left in stock! Order yours now (more are on the way).
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   Shipping Weight:   0.6 lbs
   Part #: RL-FM121-B
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Features    [ Edit | History ]

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.

  • Unique 9-bladed design
  • All white fan blade and frame
  • 800rpm ~ 2400rpm speed range
  • Long-life dual ball bearing motor
  • Stylish aluminum fan controller

Specifications    [ Edit | History ]
Plastic (PC)
Dual ball bearing
Rated Voltage
12 VDC
Start Voltage
Rated Current
0.40A (Max. 0.45A)
Rated Power
4.8W (Max. 5.4W)
800 ~ 2400rpm
Max. 110.03CFM
Static Pressure
Max. 3.26mmH2O
Noise Level
17dBA at 800rpm, 39.5dBA at 2400rpm
Life Time
50,000 hours
120 x 120 x 25mm

Silverstone Technology RL-FM121-B Customer Reviews

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 Silverstone Technology RL-FM121-B reviews.
Experience: 2 Weeks
 Verified Owner
-Speed Control Knob
-Quiet at low speed and moves large volume of air at high speed
-Essentially silent at up to 33% power
-quite loud at higher speeds
-uses up to 6w at high speed
Just temper your expectations of being able to run it at over 50% power unless your computer is in another room or you're wearing headphones.
However if moving air is the first priority (sound level be damned!) then this is what you're looking for.

Experience: 2 Days
 Verified Owner
moves air speed contraler
very loud
using this fan as a pull fan for an corsair h70 and stoke fan for puch wors ok but -1c to nosy not worth it as a case fan for cheep case ok to loud

Experience: 4 Years
lots of air
awesome fan if u want lots of air but i usually leave it on low and i cant hear it, comes with a fan grill too

Experience: 2 Days
 Verified Owner
Awesome wind maker, tolerable sound.
I love this fan but I got a Silver knob instead of a black.. but Nicx said for me to rma it and they will send me a black one.

This is an excelent fan and I plan on using it at only half speed most of the time.. its very quite except when your maxing it.

Experience: 38 Days
110 CFM, duh.
It is loud
OK, its powerful, and its loud, but i sure hope no one expects quiet at 110 CFM, i use 2 of these to cool my CPU and RAM and yeah, there is a lot of air moving inside my case, as cool as it can be.

Experience: 6 Months
Adjustable fan speed, high CFM (110) and nice white
Closed flange :(
This fan is currently used with my Thermalright SI-128 heatsink and thanks to the controller, I can adjust the speed to find the sweet spot between cooling and quietness, something other fans cannot give.

Experience: 1 Weeks
 Verified Owner
Pushes massive air
Not as loud as expected
Silverstone quality
cool floppy bay fan controller
knob on fan controller too big for sonata
I bought this fan to cool my P4 Prescott (3 ghz) processor with my Zalman copper flower heatsink. It does a great job dropping the temps on my CPU by 10c over a 120mm Vantec Stealth fan. It did all this without adding too much extra noise. My CPU is now at about 45c, not bad at all when the stock intel cooler is about 74c.

Experience: 1 Months
 Verified Owner
Moves alot of air
Speed Controller
Loud but is pumpin out 110CFM so i can deal with it
Great if you want real cooling. Lowered my system temps my 10 degrees. The fan controller is very handy with the comp is just sitting idle.

Experience: 1 Days
None that I can see.
Fantastic fan! This thing moves a ton of air. I just put one on my new Noctua NH-U12 cpu cooler and it's doing a phenominal job. It dropped my idle temperatures on my E6600 by 12 degrees and my load temperatues by closer to 20.

This fan is a tad loud if you run it on full, but full is probably more air movement than anyone needs. I'm running it at half speed with great results.

Very happy with this fan. Can really tell a difference between this and the cheap, 5 dollar ones you can buy.

 NCIX Forum Messages

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Messages about Silverstone 120MM FM121 Case Fan 800-2500RPM 17-39.5DBA MAX. 110CFM W/ Black Knob

Make quiet (Kentalish- Jul 01, 08, 2 Replies) Read this message
any way to make it quiet? (Kent B- Jun 30, 08, 4 Replies) Read this message
black in stock? (Carlos_T- Jan 09, 08, 0 Replies) Read this message
Is this one goes with Speed controller? ( Mar 10, 07, 3 Replies) Read this message

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.
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NCIX provides a 30 day limited warranty on this product.  The remainder of the 1 year warranty is provided by the manufacturer.    Warranty length may vary depending on manufacturer and product.
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