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Scythe USA > 
Item#: N82E16835185005

Scythe S-FLEX SFF21E 120mm Case Fan

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  • 120mm
  • 1200 RPM 49.0 CFM
  • S-FDB (Fluid Dynamic Bearing by SONY Corporation)

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The fan is the air conditioner of the case. To make your computer cool, you need a high performance fan. Equipped with S-FDB (SONY Fluid Dynamic Bearing), the Scythe S-FLEX SFF21E delivers class leading low-noise level, outstanding air flow as well as a long life of 150,000 hours.

This fan will function efficiently whether used as a CPU cooler fan, a PSU fan or a chassis cooling fan. A clever combination of efficiency and silence, the Scythe S-FLEX SFF21E will keep your system running cool without sounding like a jet engine.

  • newegg S-FDB Bearing The Scythe S-FLEX SFF21E features SONY Fluid Dynamic Bearing (S-FDB) to delivers enhanced airflow, low operating noise level and up to 150,000 hours MTBF (Mean Time Between Failure).
  • newegg 3- to 4-pin Power Adapter Included The Scythe S-FLEX SFF21E comes with a 3- to 4-pin power adapter so you can power the fan from a 4-pin Molex connector on your power supply.

Learn more about the Scythe USA S-FLEX SFF21E




Case Fan
Fan Size
Bearing Type
S-FDB (Fluid Dynamic Bearing by SONY Corporation)
1200 RPM
Air Flow
49.0 CFM
Noise Level
Power Connector
3-pin (4-pin adaptor included)


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. Additional suction magnet optimizes the magnetic force balance within the rotor to achieve the absolute silence. To further achieve the absolute silence, the fan is equipped with the Linear drive IC for reducing electromagnetic noise.

Outstanding Long Life of 15000 Hours
"S-FDB" structure allows the fan to last up to 150000 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 5 times stronger than the conventional ball bearing.

Dimensions & Weight

120 x 120 x 25mm

Package Contents

Package Contents
Case Cooling Fan
3 / 4 Pin Power Connector
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
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