Model #	Dimensions	Fan Speed	Fan Noise	Air Flow	Rated Current
SFF21D	120x120x25mm	800rpm	8.7dBA	33.5CFM	0.10A
SFF21E	120x120x25mm	1,200rpm	20.1dBA	49.0CFM	0.15A
SFF21F	120x120x25mm	1,600rpm	28.0dBA	63.7CFM	0.20A
SFF21G	120x120x25mm	1,900rpm	35.0dBA	75.0CFM	0.24A

Rated Voltage: DC12V
Connector: 3-pin (4-pin adaptor included)
Cable Length: 30cm
Bearing Type: S-FDB (Fluid Dynamic Bearing by SONY Corporation)

MTBF: 150,000 hours
* 150,000 hours of MTBF is measured under the 25C (77F) ambient temperature.
* MTBF of normal ball bearing Fan: 50,000 hours
* MTBF of normal sleeve bearing Fan: 20,000 hours

The following environment factors are advised for S-FLEX™ Quiet Fan.
Operating Temperature: -10C ~ 70C (14F ~ 158F)
Storing Temperature: -25C ~ 70C (-13F ~ 158F)
Avoid extreme humid environment and non condensing environment.

* S-FLEX™ is registered trademark of SONY Corp.

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 absolute silence. To even further achieve the absolute silence, the fan is equipped with the Linear drive IC for reducing electromagnetic noise.

Outstanding Long Life of 150,00 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 rotation. This gives a point supporting situations and dropping impact which can damage the ball bearing surface leading to irregular noise. The S-FDB carries a surface contact mechanism for improved anti-shock structure, which is 5 times stronger than the conventional ball bearing.