The Power Mac G4 includes two external FireWire (IEEE 1394) ports on the rear panel of the enclosure. The FireWire ports
The FireWire hardware and software provided with the Power Mac G4 are capable of all asynchronous and isochronous transfers defined by IEEE standard 1394.
For more information about FireWire on Macintosh computers, please refer to the Apple FireWire website and the other sources listed in FireWire Interface .