Fire-i Unibrain 60FPS?

I´m a little bit confussed about the max fps in this camera,
can it run at 60 fps with a IEEE 1394a port (400mbps)?

In the specifications only apears 30fps as maximun framerate.

In other words, is posible to run with a firewire 400 camera at 60fps on 640x480 mode?

Thanks a lot.