OCIA.net has posted a review on the Aspire X-Cruiser Case.

"On the right side of the case you'll find two USB ports, firewire, and the audio ports. Also included are controls for volume (top) and the fan (bottom). Adjusting the lower fan knob will increase the power to the fan you have plugged into the analog fan speed gauge. So instead of just a gauge, you have a fan controller."