This isn't really true, it only has one fan venting air yes, but the top of the case is perforated with holes to allow air out and since its based on a positive pressure system and heat rising, a huge amount of air gets out there.
Indeed. I wish people would stop spreading fud about how this case won't perform with just 1 outake or with just a H50 or H70. As the poster above has said, it allows air to naturally rise out the top via the perforations, and the case promotes positive airflow. Lots of people on XS and Hardforums have tried rigging additional exhaust fans mounted in the top of the case and it has made no difference to temps. Also the guys who run HardOCP are using the Raven RV02 in their GTX 480 SLI setup which has the same cooling layout as the FT02. They have publicly said the cooling layout has meant their gpu fans don't work as hard as they receive fresh air from the bottom 180mm fan.
.

