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Scythe USA > 
Item#: 9SIA4CP1GG2615

Scythe SY1212SL12H 120mm Case cooler

  • 120mm
  • 2000 RPM 45.47 CFM
  • Sleeve
  • 37 dBA
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Learn more about the Scythe USA SY1212SL12H




Case Fan
Fan Size
Bearing Type
2000 RPM
Air Flow
45.47 CFM
Noise Level
37 dBA
Power Connector
3-pin (3-pin to 4pin adaptor included)

Physical Spec

120 x 120 x 12 mm

Quick Info

Customer Reviews of the Scythe USA SY1212SL12H

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  • Anthony R.
  • 12/3/2014 11:57:09 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsHard to Get noise to acceptable level

Pros: 12 mm wide; the only fan I could find to fit behind the mobo on my Rosewill Blackhawk case
Decent air flow, Going on 3 years

Cons: Hard to get silent; I kept getting a vibration sound... I tried to dampen it with little pieces of duct tape between the plastic of the fan and the metal honeycomb of the case. An intermittent vibration sound still persists but it's 80% gone after you adjust the screws and tinker with it.

Other Thoughts: It's louder than any other fan in my case, but if you tinker with it, you can get it to the point that you can't notice it 90% of the time.

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  • Devin J.
  • 2/4/2014 2:23:51 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsA 12.5mm-deep fan.

Pros: It's 12.5-mm thick. If you, like me, bought a case that turned out to be too small to hold both a motherboard AND a standard 25-mm fan, this is your fan. It provides perfectly acceptable airflow.

Cons: I've had these for 3 years now. I thought I was going to have to replace them last year, because one of them would slow and eventually stopped completely sometimes. However, thoroughly blowing out & removing lint from the fan has brought it roaring back to life. If you have a fan controller, that's good, because at max RPM it moves probably more than the necessary amount of air and therefore collects lint faster.

Other Thoughts: I bought a new motherboard recently, and found (due to the poor design of the case, mind you) one of the fans would clip the edge of the 8-pin EATX plug. The solution was to inelegantly pare and file down the plastic housing of the connector with toenail clippers.

So really, if it's not too late, your best choice is to get a case that doesn't require you to also get these fans.

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

  • Paul W.
  • 12/31/2013 7:23:05 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggs

Pros: Very thin fan. Decent air flow.

Cons: I go 2 of these for my build and I dock an egg because these fans are loudest fans in my case - kinda makes it sound like a space heater.

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  • Brad O.
  • 12/16/2013 4:17:40 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsLoud!!!

Pros: Extremely thin profile fits just about any location in any case with any motherboard. The only option for top exhaust fans in smaller cases that fit full ATX motherboards.

Cons: Bought two of these and both had a terrible, loud whine from day one. Couldn't see anything wrong with the fans themselves, possibly just a byproduct of the design.

Other Thoughts: I couldn't stand how loud these were - people two rooms away in my house could hear them whirring through closed doors - so I passed one off to a friend who said he didn't care about the noise and tossed the other out.

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  • Gregory T.
  • 10/15/2012 6:22:08 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWhen Fan thickness counts

Pros: These are 12.5mm thick fans. When the 25mm are too thick, this will be your choice. I really like these fans.

I am using another one of these (1,200rpm SY1212SL12L) to cool the processor chip on my RAID controller... I'm using a PCI slot cage to hold the fan as I had a clearance problem with typical 25mm fan setups.

And guess what???? There is a rheostat controlling the speed of the fan... MB reports it is running at 900 RPM and temp probe reports ~20 degrees higher than ambient for the RAID chip. Good stuff!

BTW, I think the decibel rating is a bit conservative... When running at rated rpm, it doesn't make much noise. Which is unlike the equivalent 25mm fans.

Cons: Fan does not have the sturdiness of the 25mm fans... I'm referring to the blades/spindle assembly. This is sort of to be expected, all things considered. Must treat these fans with respect. However, the frame is sturdy. NO EGGS OFF!

Other Thoughts: Hard to find... I ordered more from Newegg and was told... only one left, want it? Sorry fellas... its sitting my stash.

With my setup, the rheostats will turn the fan speed all the way down to 350 rpms (per MB reports) and as high as the rated RPM (again, per MB reports). When set, the rpm is very stable, varying very little.

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  • Ryan E.
  • 9/26/2012 5:22:45 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsSlightly Dissapointed...don't know what I expected

Pros: They don't make fans slimmer (in depth) than this. It pushes air.

Cons: These fans are not at all suitable to be mounted horizontally. I had 2x mounted as exhaust pull above my H100 rad. (in push-pull config.), above the blowhole (top grate) on my 600t case. About the second week after installation, whenever the fans would spin up, they would scrape the top of the blowhole grating and make a horrible noise. Upon further examination the plastic holding the fan rotor/ blades to the fan body is just too thin and flexible to be mounted in this fashion.

When I connected these to my H100 controller, the speed control made these fans' speed oscillate rapidly. They would go from acceptable noise levels to sounding like an RC car and back every 10 seconds :-|

Other Thoughts: Don't know what I expected from a 12mm depth fan, but I was still disappointed. R&R'd both with YLs. I guess I'll hold on to them until I find a vertical application that requires a fan this slim. If something sounds too good to be true, it is.

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  • Matthew H.
  • 9/16/2012 7:18:15 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsScythe SY1212SL12H 120mm x 12mm fan

Pros: Very Thin at 12mm
Very Sturdy Good Motor
Moves a Decent Amount of Air
Great for Custom Rigs

Cons: Pricey
Not Always in Stock
Not as good as an equivalent fan in 25mm thickness
Blades are Thinner so a little bit of increased noise level
May need to use different screws due to decreased thickness
Wish they had a little more static pressure, but cant fight physics

Other Thoughts: I used mine for a push fans for my H100 corsair since a regular thickness fan would not fit, seems to be working well, noise isn't a problem because i have them on a fan controller.

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  • Esteban C.
  • 9/13/2012 5:27:33 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsLOUD!

Pros: This fan moves quite a bit of air.

Cons: the fan is super loud.... like someone in an earlier review said, its like you have fighter jet simulations going on in your case.
also AIDA64 as well as AI Suite II clock the speed at a max of 1600 RPM even though its a 2000RPM fan.

Other Thoughts: (USED AS A SIDE FAN) Really the noise doesnt bother me THAT much, and the low profile was necessary because my old rosewill side fan was hitting the Cooler Master 212 Hyper Evo causing the fan to move around whenever i closed the side panel.

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  • Craig E.
  • 7/31/2012 2:01:27 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsLOUD

Pros: Just the right size to go in my ROSEWILL BLACKHAWK tower. There is area for a fan to help cool the motherboard off on the case. First I had it hooked right the power supply....and it sounded like a hair dyer. So, after I connected to my Fan Controller, it was bearable...

Cons: None...

Other Thoughts: Great for those hard to reach spots...

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  • James T.
  • 7/27/2012 1:05:36 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsNice little fan

Pros: Good fan, Low noise, Slim.

Cons: Didn't push as much air as i thought it would. Still a good purchase to get that hot air behind the motherboard out.

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Computer Hardware > 
Fans & PC Cooling > 
Case Fans > 
Scythe USA > 
Item#: 9SIA4CP1GG2615
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