"Larry W4CSC" wrote in message
...
USB resources in your computer are not fast enough to provide good
full motion video to your PC and its monitor. That requires direct
memory access from the bus to the video card's memory, so the video
card must be plugged into one of your bus ports.

I disagree with you Larry. Provided the video is sufficiently compressed,
enough bandwidth on the USB bus can be allocated for streaming video in TV
quality.

Even USB 2.0 is too slow,

No. USB 2.0 is 480Mbit/s while the FireWire bus, which is suitable for
top-notch studio quality is "only" 400Mbit/s

Regards,
Meindert