You might want to hold off reading this review as these coolers are very likely to grace our pages in the near future but if you can't wait then HiTech Legion is the place to go to check out these small coolers from Noctua.  The 125mm NH-U9S fits in 4U cases while the 110mm NH-D9L can fit in 3U spaces, making them perfect for not only rack mounted cases but also for SFF builds.   The weights are also smaller than usual, with the 92mm fan installed they weigh 618g and 531g respectively.  For small builds with processors with a moderate TDP these are certainly worth your consideration.

"While Noctua’s new NH-U9S and NH-D9L were designed to comply with rack mount system standards, their low profile and horizontal airflow make them a natural choice for SFF and HTPC systems where CPU cooler space is limited. The Noctua NH-U9S meets 4U standards at 125mm tall, while the NH-D9L takes it a step further to meet the 110mm requirement of 3U standard."

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CASES & COOLING