That is so helpful, thank you!!

I think @joanp uses one and has been to Japan twice – maybe he can comment too.

I had experience about bringing smart drive with JAL. I encountered no difficulty when taking international flight with smart drive. However, when taking domestic flight, the airport / airline staff spent a lot of time to research for info (even I had all written documents) and “seek for approval”. Allow extra extra time for checking in.

Hello.

When you say “smart drive”, do you mean a drive unit that can be added later?

I think it depends on the airline’s rules, not IATA’s.

I think the biggest problem is the battery specifications. I recommend checking with the airline.

Regards.

Tak