GamePC has posted a comparison between Ultra ATA/133 vs. USB 2.0 vs. Firewire

As the slow legacy serial and parallel ports are finally dying off and fading into the wild blue yonder, we're seeing the emergence of some incredibly fast I/O ports. USB 2.0 and Firewire, both out on the market now and gaining popularity, are quickly becoming the only choices out there if you want a high-speed PC peripheral.

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