"If you have a very specific amount of space to work with, and the NH-U12S fits within those constraints, it is probably a better choice than just about any closed loop cooler that would otherwise fit. Adding a second fan improves performance dramatically, allowing more overclocking headroom while maintaining a relatively low noise level."
Carl Nelson - Hardcoreware.
Noctua NH-U12S CPU cooler review by Hardcoreware - Introduction & Conclusion.
