[MBCook]

This is the part that caught my attention:

> We noticed a few cavities around the edges of the impeller filled with some sort of epoxy (on both sides). We suspect it's for fine-tuned balancing, to keep the fan running smooth and quiet.

Apple is balancing the fans they put in the computers. What other manufacturer would do that? I love Apple's little details.

[hafflelog]

> Apple is balancing the fans they put in the computers. What other manufacturer would do that? I love Apple's little details.

Noctua, for example? http://www.noctua.at/

[knubie]

I've used a Noctua fan in one of my builds, they are fantastic.