Thermaltake have taken the design of the V1 and tweaked and
enlarged it into a monster that is the V14Pro. The added bulk is not
in vain though and it works well and temperatures are improved because
of it. The fan on full speed is loud, and I wouldn’t want to run it
like that all the time, but the manual fan speed controller allows you
to dial in your own compromise between noise and performance.

http://www.xtremecomputing.co.uk/review.php?id=447