"It has been quite a long time since I had the experience of installing and testing a low-profile tower cooler. The tendency of most users (myself included) is to obtain tower coolers that are large to maximize the cooling effect needed to keep their computer systems running at maximum speed for high FPS and resolutions on their large monitors.
The NH-D9L D-Type tower cooler was not designed for that purpose, but after a couple of weeks of studying and testing I have come to the conclusion this cooler can hold its own even against those big coolers for (short term) gaming. With its low profile and premium fan, the NH-D9L tower cooler is a good choice for small form factor cases or HTPC computers needing extra cooling performance."
Marvin Purdy - Neoseeker.
Noctua NH-D9L review by Neoseeker - Introduction & Conclusion.