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Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB

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Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
65%
Excellent
29%
Very Good
6%
Average
0%
Below Average
0%
Poor
Rating: 9.19/10
Rognip@NCIX
Rating:

Review Date: 07/02/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:- I wish it was sleeved like the Noctua fans.

Pros:- Good airflow- Not very expensive- Very quiet- Long life span
Comment:
The S-FLEX fan is wonderful to work with. I use it in my CM stacker 830 evo case. It snaps into the filters with easy and doesn't even need screws. I'm currently using it as exhaust for the top portion of the case. Seems to do the job so far. I hooked it up to my Kazemaster fan controller and found it wasn't even necessary because of its quiet operation. You can keep this fan going full-tilt and not notice it very much. No weaknesses thus far, however, I wish I would have gotten the higher RPM fan that was recently released for additional air flow since they are so quiet. This review was modfied by poster @ 07-02-08 10:54 AM
stoanee@NCIX
Rating:

Review Date: 06/18/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:A little expensive

Pros:QuietDurable
Comment:
I am using this on my Xigmatek HDT-S1283 cpu heatsink. I cannot even hear it over the case fans. This is my third Scythe fan and probably will not be my last.
werth@NCIX
Rating:

Review Date: 06/03/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:none.

Pros:great fans, good rpm. long life. can bring noise level down with controller
Comment:
opted for the little faster ones, since i can tone them down with the fan controller. awesome fans, bought 7 of them
D-Blitz@NCIX
Rating:

Review Date: 05/12/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Too pricey for a fan for me

Pros:Quiet, fast, efficient
Comment:
I got on of those for my Thermalright Ultra-120 Extreme. Previously, I used to have a Yate-Loon zip-tied to the heatsink and with this fan have seen a slight improvement of about 1-2 degrees. This is definitely a solid product and I recommend it for your TRUE 120's.
Silent Dude@NCIX
Rating:

Review Date: 05/02/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Noise, I guess...

Pros:Tones of airflow
Comment:
Using this as an exhaust fan and another one on a Thermalright ultima-90 and it helps keeps my E8400 nice and cool. It moves lots of air, but is quite audible when running at 1600rpm in my P182 case, quieter than the fans that came with the case though.
frostycpu@NCIX
Rating:

Review Date: 04/28/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:-None so far

Pros:-Very quiet-Blows a lot of air
Comment:
Being plagued with a poor fan from the CoolerMaster 500W extreme series, I decided to replace it and chose this Scythe fan. Compared to what the PSU had, it blows a LOT more air and it's very quiet.The molex adapter came in handy when I had to plug it in since the psu connector only has two pins and the wire setup had the red/black wires inversed from the other fan. Took the wire outside the psu through the cable hole instead and hooked it up to a 12v rail.Awesome fan overall.
GhettoChild@NCIX
Rating:

Review Date: 04/23/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Packaging was a paper box inside a plastic casing further surrounded by a cellophane wrapper (why so much plastic?)Faint buzzing sound, like a fly or bee passing by, can be heard during operation. A little noisier than Arctic Cooling 12PWM and Arctic Cooling 12025 PWM.Airflow feels weaker than 12PWM fan but stronger than 12025 PWM.Obstructing exhaust has no effect on noise level. No audible vibrations when placed on the floor.

Pros:120x25mm, all black, open chassis/screw holes, details/tech specs included on box, rated 150,000hrs lifespan, 2yr warranty, Sony's Fluid Dynamic Bearing like what's used on some recent hard drives, 3pin TX3 connector with tachometer RPM sensor, 4pin Molex LP4 to 3pin TX3 adaptor with tachometer RPM sensor bypass so you can monitor RPMs while using a molex power plug.$12 for a medium speed medium airflow 120mm fan seems reasonable.Obstructing exhaust has no effect on noise level.
Comment:
Very good fan for average airflow, really good longevity. Useful extras/accessories. If they ever make a 100-133CFM fan in this line I'd be interested in trying that out. This review was modfied by poster @ 04-23-08 02:28 PM
Mark_S@NCIX
Rating:

Review Date: 04/17/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:None.

Pros:Quiet, moves a lot of air.
Comment:
This is a great fan, I'm using it with a Thermaltake Ultima-90, and it's keeping my E3110 at 3510 MHz nice and cool (temps always less than 40 celsius, even at load after several hours). Not much else to say, other than this is a fantastic fan that manages to push a lot of air and never be audible, even with the side off my case (Antec P182). Highly recommended!!
Bruce_M@NCIX
Rating:

Review Date: 04/11/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Not really a weakess but it is very plain looking

Pros:Silent yet still moves a considerable amount of air
Comment:
I have installed two of these in a case and you would think it's a silent wind tunnel in there. Everything runs beautifully cool. The real test will be when I add the second Video card.I also have the Ninja Scythe Copper without an installed fan. The two case fans are enough.
Karant@NCIX
Rating:

Review Date: 04/09/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:None!

Pros:Cool and quiet!
Comment:
Does exactly what it says, have owned many Scythe fans and continue to be pleased. Highly recommended!
Michael_M@NCIX
Rating:

Review Date: 04/04/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:None

Pros:Quiet, High CFM, Good Price
Comment:
Purchased this for my Thermalright Ultra 120 Extreme and it keeps my Q6600 at 28C with stock settings. This fan is extremely quite at its rated 1600RPM.
ABR@NCIX
Rating:

Review Date: 03/28/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:No for me

Pros:Moves good deal of air, while stay quet
Comment:
I use this one on my Schythe Nidja Rev.B heatsink which comes with 1200rpm fan on Q6600 CPU.I'm very pleased with results on both nose levels and my temps. There is may be other great models around, but this one - sure bet (unless you have to have LEDs).
Brian_Z@NCIX
Rating:

Review Date: 03/23/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Too much packaging for a fan!

Pros:Solid constructionSony FDBComes with 4 pin adapter and mounting screwsRPM reports on my Asus P5K board (not all 3 pin fans will!)
Comment:
I bought this to replace a fan inside my Corsair HX620. Gone is the bearing chatter of the stock fan, replaced with a VERY smooth whoosh. Starts up at low voltages so it's perfect for this PSU, with enough speed in the event things get a bit toasty.The only thing is that this fan was packaged inside a plastic box which was again sealed in a plastic wrap.
Wylo@NCIX
Rating:

Review Date: 03/14/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:None

Pros:Quiet and powerful
Comment:
These are the best fans I've used. They are super quiet and blast out a lot of air. I got them connected to a fan controller to make it even better.
Ericy@NCIX
Rating:

Review Date: 03/10/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:*Loud

Pros:*Cheap*Good Cooling
Comment:
Good Price for a great item! The cooling from this fan is great. I normally have my computer on 24/7 so a bad fan would not bold well for me. Having said that i am very happy with the S-Flex. My core temps have never gone past 40 degrees even on full load. Only downfall is the fan is a tad loud of course i'm comparing it to fans that are more than twice it's price so that might be asking for much. All in all, a very good buy at a even better price, recommended!
CoolBreeze@NCIX
Rating:

Review Date: 03/07/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:None

Pros:Extremely well designed fan using Sony's fluid dynamic bearing technology it's rated to 150,000 hours. It provides a lot of airflow and it's also quiet.
Comment:
THe Scythe S-Flex SFF21F cooling fan makes an excellent addition to any system as either a heatsink cooling fan, or case fan. At $12 it's a good deal, and will last for years as it's rated at 150,000.
mhle@NCIX
Rating:

Review Date: 02/29/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Nah

Pros:Easy installCools greatQuiet
Comment:
I have the 1600rpm on my Ultra-120 and it keeps the cooler cool and my temps low. What more could you want? The only thing that bothers me with the Ultra-120 inside my CM 832, I had to take out the top-left fan bracket in order for the Ultra to fit. So, I can only fit three Scythe S-FLEX 1200rpm. Btw, the 1200rpm is slighty quieter compared to the 1600rpm, of course.
Gordon_L@NCIX
Rating:

Review Date: 02/28/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Loud at max speed.

Pros:Good fan! Works exactly what it was designed for.
Comment:
Great fan. I have it attached to Thermalright Ultra 120 Extreme and have my Q6600 running at 3.5! I have it set to high, so it is a bit loud but still quiet for a 1600RPM. Would buy this again if needed over others!
Mehrab_S@NCIX
Rating:

Review Date: 02/26/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:none

Pros:Moves a lot of air and is relatively quiet
Comment:
I used this in conjunction with a Thermalright ULTRA-120 cooler to cool a Quad Core Q6600. I have it running at 3.2G and idling at 30C
Zer@NCIX
Rating:

Review Date: 02/26/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:None really

Pros:DurabilityQuietMoves a fair bit of air for 1600RPM
Comment:
Great Heat Sink fan, nice and quiet... Have 2 of theses, one of which was purchased here at NCIX.They are extremely quiet, more alot of air for their rated RPM and can be used for either cases or HS with great results, I however, prefer using them for the latter. Couple one of theses with a Thermalright heat sink capable of accepting a 120mm fan and you got a winner combination:P
IC9@NCIX
Rating:

Review Date: 02/25/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:none

Pros:- Sony FDB bearing (fluid dynamic bearing) - 150K MTF!- linear drive IC (very stable speed)
Comment:
For a 1600 RPM fan, its pretty quiet. One of the most important features is the FDB bearing. Its similar to the Noctua self-stabilizing oil-pressure bearing. Offers 150,000 MTF (mean time till failure) compare this to a typical sleeve bearing of 30,000 hrs.
Daniel_Y@NCIX
Rating:

Review Date: 02/20/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Would be better if it was available with PWM, this way I could just let my motherboard control the rpm.

Pros:Fairly quiet at 1600rpm. Had this on my thermalright and it did wonders for cooling my cpu.
Comment:
Great product but the Arctic Cooler has one with similiar performance at a cheaper price with PWM. That is what I replaced this with on the thermalright and used this one as chassis fan instead with a fan controller.
zVp@NCIX
Rating:

Review Date: 02/20/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:- Lack of sleeveing- Lack of adaptors

Pros:+ Moves alot of air+ Relatively quiet
Comment:
Awesome fan. I keep this fan cooling my hard drive and it cools it nicely even when it's undervolted. The only thing that would be awesome on this fan would be sleeving and adaptors to undervolt it.
Nuckoholic@NCIX
Rating:

Review Date: 02/10/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:Price?

Pros:They look better than the Noctuas
Comment:
These fans are awesome! I have three of them running in my case, including one on the TRUE-120. They add to the awesome airflow in my Antec 900
Olivier_G@NCIX
Rating:

Review Date: 02/09/08
Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
Cons:none

Pros:Silent, performs great
Comment:
I watercool and want a PC that is quiet. These are very nice especially with a radiator designed for low CFM like a Thermochill.
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