S-FLEX 80mm Fan (1000 RPM, SFF80A) Discontinued
More variations available Show

Scythe S-FLEX 80mm Fan (1000 RPM, SFF80A)

This is the 80mm version of Scythe’s popular S-FLEX fan. It is equipped with genuine S-FDB (SONY Fluid Dynamic Bearing) made by SONY corporation.

Equipped with Genuine S-FDB Bearing

This fan is equipped with genuine S-FDB (SONY Fluid Dynamic Bearing) made by SONY corporation.

Market Leading Low-Noise Level

S-FDB technology drastically eliminates the friction between the bearing and the shaft which makes this fan nearly inaudible to human ears. An additional suction magnet optimises the magnetic force balance within the rotor to achieve the quietest operation. Furthermore, the fan is equipped with the Linear drive IC for reducing electromagnetic noise.

Outstanding Long Life of 150,000 Hours

Patent Pending “S-FDB” structure allows the fan to last up to 150,000 hours!!

Anti-Shock Ability

Conventional ball bearing carries a point contacting structure for the rotation, which gives point supporting situations at dropping impact to damage ball bearing surface which could cause irregular noises. The S-FDB carries a surface contact mechanism for improved anti-shock structure, which is five times stronger than a conventional ball bearing.

Features

Quiet PC cooling fan
Sony Fluid Dynamic Bearings
4.5 dB(A) / 1000 RPM / 14.3 CFM
MTBF 150,000 hours

Specifications	S-FLEX 80mm 1000
Model Name	S-FLEX 80 mm Case Fan
Model Number	S-FLEX SFF80A
Dimensions	80 x 80 x 25 mm
Weight	80 g
Air Flow	14.3 CFM
Fan Speed	1000 RPM
Noise Level	4.5 dBA
Connector	3-pin (4-pin adaptor included)
Bearing Type	S-FDB (Fluid Dynamic Bearing by SONY Corporation)
MTBF	150,000 hours
Warranty	24 months
EAN barcode	4571225043906

Specifications	S-FLEX 80mm 1000
Model Name	S-FLEX 80 mm Case Fan
Model Number	S-FLEX SFF80A
Dimensions	80 x 80 x 25 mm
Weight	80 g
Air Flow	14.3 CFM
Fan Speed	1000 RPM
Noise Level	4.5 dBA
Connector	3-pin (4-pin adaptor included)
Bearing Type	S-FDB (Fluid Dynamic Bearing by SONY Corporation)
MTBF	150,000 hours
Warranty	24 months
EAN barcode	4571225043906

Customer Reviews

Scythe S-FLEX 80mm Fan

Mark Anderson, 16th January 2011

Just installed this fan this morning. Was very easy to install, although there were not any instructions supplied with the fan. The fan is insanely quiet. I had to put my hand behind it to make sure it was actually working! Before I installed the fan, my CPU core was running at around 53-56 Celsius. Now I’m measuring 40-46 Celsius. [Note - I was using the software ‘Core Temp’ for these measurements.]

Quietest fans I've ever used.

Simon Mason, 30th September 2010

Excellent fan. I bought two for a HTPC build, so fan noise isn’t something that would be tolerated. Even with both fans running, there is no additional noise from the system at all and the CPU and GPU temps have dropped 10 degrees each.

Would buy this fan again and thanks to Quiet PC for a speedy delivery.

excellent replacement fan!

Russell Petersen, 21st September 2010

I bought 3 of these fans to put into each of my 5in3 HDD storage cages. The fans that came with the case made it sound like a hairdryer. I replaced them with these and now the NAS I built is silent. I down volted the 120mm and 2x140mm case fans to 5v and 7v respectively, I could run these 80mm S-FLEX at 12v and still not hear them. Really impressive fans!

Excellent

Rowland Barltrop, 13th August 2010

Really very, very quiet. I was concerned about the low volume of air the fan shifted BUT it managed to take the hard drive temperature down from 45c to 32c, and has helped to reduce the overall temperature in my SFF - result. Okay so I’m fortunate in that the fan draws in outside air straight over the drive but still impressed.

Inaudible!

Anonymous, 27th February 2010

The only sound you’ll get from this fan is the gentle whoosh of the air. Nice!

Product Resources

Scythe website

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.