Today we will be looking at another addition to Noctua's award winning lineup: the NH-U9B. Unlike the other Noctuas we have put through their paces, the U9B is different from its brethren since it is actually quite small in comparison and uses a completely different fan size and design to keep its heatsink cool. It is geared towards those of you who do not want a massive heatsink in your HTPC (or standard ATX) case and seems to have been released to compete with the Thermalright Ultima 90.