You will need it to run real time video streaming

回答: 苹果将推出17英寸MacBook Pro新版MacMini ZTψ2009-01-05 17:13:04

You can use 1394 to transfer DV into PC, never with USB because their different protocols. 1394B designed 7 years ago and runs for 800MBps.

USB is also too slow for continuous data transfer.

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