The Noctua NH-U9B is a refined take on the previously successful NH-U9 heatsink. This time around, Noctua nickel plate all copper surfaces and bundle in the super quiet NF-B9 fan - and it's not your average vaneaxial fan either. The NF-B9 is a flesh-toned fan with three key innovations; SSO bearings, vortex-control notches, and textured leading impeller surfaces. That translates into a fan which is very quiet at a speed of 1600RPM, and with two in-line resistors its rotational speed can be further reduced without impacting temperatures too dramatically.
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*Review: Frostytech (
http://www.frostytech.com/articlevie...ticleID=2270)*
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