Zalman HD160 HTPC Case ReviewSo the case comes with two 80 mm fans in the back, less
 

So the case comes with two 80 mm fans in the back, less surprisingly made by Zalman.
They are insulated with soft gel mounts to prevent vibrations travelling to the case
frame. With the delivered adapter the voltage of the fans can be changed between 12 and 5
volts. There are also fan guards at the back so no foreign objects, fingers etc. can be
pushed to the fans from the behind of the case

I'm waiting for the first HTPC case with one of those 250mm fans.

I think there's no need for that.

250 mm would only it in the top of bottom. And mostly there are more devices placed on and below the HTPC such as DVD player, amplifier, ...

I tested the HD160 as well and operating at 5 V those fans cool well and are very silent.
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