Looks like USB support for syncing was introduced in 2003, and for charging in 2004. Mine was a 4th generation monochrome - in other words, 2004ish. Had to hav

Looks like USB support for syncing was introduced in 2003, and for charging in 2004. Mine was a 4th generation monochrome - in other words, 2004ish. Had to have been USB. I don't think there were any Firewire Macs before 1999, and I don't think I ever got a Mac after that point, or that ran OS X.