Cord doesn't stay attached
As you know with an external harddrive, if you detach the cord without ejecting the drive first, this can cause problems. Especially if you are in the middle of saving or working on a project. The USB cord into my computer worked. It was the end that goes into the LaCie portable hard drive that wouldn't stay. It would slip out with barely a movement of the hard drive. It is portable, which is why I bought it to pair with my MacBook Air, but I was never able to set it up or use it because the issue with the cord. I don't know if this is defective or if all of them are like this...it looks like the orange 'padding' around the drive itself is what prevented the cord from inserting in a secure manner.