USB 2.0 Upgrade
iMac G4 Flat Panel Mac OS X (10.3.9)
All the rest are USB1.1.
Some iPods (1G to 4G and the Minis) have Firewire and so would be better connected into the Firewire port.
Have you considered a Firewire Card Reader (example).
regards
mrtotes
USB 2.0 Upgrade