UKGamer.net has posted a review of Globalwin´s biggest and most powerful case fan, the CAF12. Here a snip:

Case cooling is often over looked by most, since they concentrate on just cooling the CPU (after all that is the most important thing right?), but the ambient temperature around the CPU, and in general the case has quite a bit of effect on the CPU temperature. You have to remember that fan solutions do not cool the air, just blow a steady stream of it onto an object. Case fans, such as this CAF12 re-circulate the in the case therefore it offers clearer, and fresher' air within the case for the CPU fan to blow onto the heatsink. The circulation of air helps remove the hot air which has been heated up by the CPU or other components like the hard drive.

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