The dual 1.42 G4 has an 800 port. I added a 250 GB external to that port. (Luckily, I did not upgrade to Panther yet, but the firmware is now upgraded.) An older G4 would not mount the drive, however. (The drive comes with a 400 to 800 cable as well as the 800 to 800.) Also, I have a Maxtor 160 GB attached to the iMac. It can see all of the space because Maxtor does something special to the bridge. Shirley On Tuesday, December 30, 2003, at 06:01 PM, Peter van der Linden wrote: > 3. add external firewire drives. G4s only have firewire 400MHz.