Noctua NF-S12 120MM Fan

@ 2006/12/20
"They've also left extra space between the tips of the blades and the frame in order to reduce the creation of turbulence and also employed a new self-stabilising oil-pressure bearing (SSO bearing)which they claim "surpasses current types of ball, sleeve or liquid bearings in terms of long-term stability and quietness.""

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