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Gentle Typhoon 120mm 1850 RPM Cooling Fan
Discontinued
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Scythe Gentle Typhoon 120mm 1850 RPM Cooling Fan

High performance paired with low noise - that is what the new Gentle Typhoon fans developed by Nidec Servo Corp. are all about.

High Performance

The Gentle Typhoon achieves high airflow volume and low noise with the newly designed impeller, enabling silent cooling of the latest devices which run very hot.

Silent Operation

The Gentle Typhoon has a different type of tone. The fan propeller is designed to reduce the disturbing frequency fan noise to the human ear.

Innovative Technology

The newly designed motor and motor support mechanism uses a double vibration reduction structure. The new support mechanism uses coil dampers to greatly reduce vibration.

Features

  1. Quiet PC cooling fan
  2. High performance
  3. Developed by Nidec Servo Corporation
  4. Only 28 dB(A) at 1850 RPM
SpecificationsGT 120mm 1850
Model-No.D1225C12B4AP-15
ManufacturerNidec Servo Corporation (Japan)
Weight200 g
Dimensions119 x 119 x 25 mm
Maximum air flow, CFM ±10%57.6
Maximum noise level, dB(A)28
Maximum fan speed, RPM ±10%1850
Bearing TypeDouble Ball Bearing
MTBF100,000 hour at 35°C or 60,000 hours at 60°C
Fan Connection3-pin + 4-pin Molex adapter
Warranty24 months
EAN barcode4571225042459
SpecificationsGT 120mm 1850
Model-No.D1225C12B4AP-15
ManufacturerNidec Servo Corporation (Japan)
Weight200 g
Dimensions119 x 119 x 25 mm
Maximum air flow, CFM ±10%57.6
Maximum noise level, dB(A)28
Maximum fan speed, RPM ±10%1850
Bearing TypeDouble Ball Bearing
MTBF100,000 hour at 35°C or 60,000 hours at 60°C
Fan Connection3-pin + 4-pin Molex adapter
Warranty24 months
EAN barcode4571225042459

Customer Reviews

Fluctuating Whirring Noises...

,

I needed a high pressure fan to replace some cheap ones I had over a high density fin radiator (Black Ice GTS) in my HTPC, and having read great things about this fan I bought 3. Unfortunately, although the performance is excellent the sound is quite unbearable, even from the other side of the room… The noise is not from air turbulence but more from motor whine, and what makes it even more noticeable is that it seems to constantly switch between a high to low frequency whine in quick succession. Since purchasing them I’ve read a number of reviews which also mention this problem, so I don’t know whether it’s just the luck of the draw whether you get whiny ones or not. It’s disappointing as they aren’t cheap and now I’m probably going to have to shell out on the Noctua Focused Flow to get the pressure I need at hopefully low decibels…

Unexpected quiet

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I’ve been reading all forums and reviews about this type of fan model and it’s all true. There are no other fans in my system beat this even my 140mm Thermalright X-Silent 140 is already quiet.

This fan spins at 1300RPM is unheard. At higher 1500+ RPM, slight wind noises. This fan push a lot of air and high CFM pressure.

Thank you QuietPC.com, I’ve been looking for this fan for 5 months because they are out of stock everywhere except QuietPC.com!!!

Top 5 fan

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I build custom PC’s and these are next to impossible to find around here, saw the sites name in a forum and decided to check it out, you guy’s got it all. Perfect noise/CFM ratio at this RPM, have these fans as intake exhaust in my PC and placed them on many rad’s for custom watercooled PC’s.

The best fan.

,

I was looking for something silent for my Antec1200. The stock fans was not only loud but to bright for me. By advice from forum I bought few of those, for the test just for the front. I have to say that with NZXT Sentry they make a great team. Fans are running at 700RPM, which gives me a silent PC plus the case is still pretty cool, around 25c in stress, plus just in case I still have few hundreds RPM’s in backup. If you are looking for something really good , do not hesitate to buy this one.

Fantastic fans.

,

Gentle Typhoon are absolute top end fans, especially for use with high airflow radiators in liquid cooling solutions.

Remarkably silent, even at higher rpm, good pressure and flow characteristics.

All in all a fantastic product.

Product Resources

FAQ

  • How do I measure fan size?

    The size of fan you need will generally be determined by the size of the fan fitting position in your PC case. The sizes of all the fans on our website are shown as measured along any one of the fan’s four sides, NOT the distance between the fan’s screw holes! Our most popular fan size is 120mm, followed by 80mm. This isn’t really dictated by customer preference, but more by recent designs of PC cases.

    As for the thickness (depth) of the fan, generally 25mm (1 inch) is by far the most common depth, although smaller fans can have shallower depths such as 15mm or even 10mm. All our fans are 25mm thick unless otherwise stated. If you have any questions about which fan you should order, please don’t hesitate to get in touch.

    If you know the distance between the fan mounting screw holes but don’t know what fan size to order, please see the following table. Note that the mounting hole measurements shown below are taken horizontally or vertically between the holes and not diagonally.

    Screw hole spacings and fan sizes

    Space Between Screw Holes Fan Size
    32mm 40mm
    40mm 50mm
    50mm 60mm
    60mm 70mm
    72mm 80mm
    83mm 92mm
    105mm 120mm
  • I received a small cable (resistor) with my fan; what is it for?

    The resistor cable (also called Ultra Low Noise or ULN cable) is designed to allow the fan to run slightly slower for even quieter operation. The benefit in lower running noise is significant. Although the airflow will be reduced slightly, this usually has minimal effect on PC temperature. We would generally recommend using the ULN resistor cable for best results in almost all circumstances.

  • How can I tell which way the air blows through the fan?

    Hold the fan so that the round fan sticker is facing you. You are looking at the rear of the fan. When you plug the fan in, the air will be blowing towards you. If you want a fan to act as an air intake, then the fan sticker will be facing the inside of the case. Some fans also have two small arrows moulded into their plastic housing - one arrow shows the direction of airflow, and the other (at 90°) shows the direction of blade rotation.

  • Is it possible to use a 4-pin PWM fan or CPU cooler with a motherboard which has only 3-pin fan headers on it?

    Electrically, there is no problem doing this - the fourth pin on the fan cable is used purely for PWM control and is not needed in order for the fan to run. So you can plug the 4-pin fan connector onto the 3-pin motherboard fan header, leaving the fourth pin not connected to anything. The fan will potentially run at full speed, so if you would like to reduce the speed of the fan you will need to adjust the fan speed setting in your BIOS or use fan control software such as SpeedFan in Windows.

    The only other problem to consider is that occasionally, components immediately adjacent to the motherboard fan header can get in the way of the larger 4-pin fan connector, physically preventing connection. This problem also occurs if you try to use an in-line fan speed controller such as the one made by Gelid.

    Another avenue to explore is the possibility of using a bay-mounted fan controller. Several models are available now which provide 4-pin fan headers, so this is an easy way to use 4-pin PWM fans in a PC system which has only 3-pin fan headers on its motherboards. When using this method, you may find it necessary to disable any fan warning settings in your motherboard BIOS, since the motherboard may incorrectly believe that its CPU fan has failed when the fan is connected to a fan controller rather than directly to the motherboard itself.

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