Backup (fotos) from my passport to other "external" drive via usb!?

WD External Drives WD Portable Drives
1

I have a mypassport wireless pro with sd card.
OK for backup fotos from sd card to my passport.
But can I have a second backup on another external drive on the usb of my passport?
How to manage that?

From external drive to my passport no problem via usb.
But the other direction?

2

Are you referring to connecting a Passport via USB to your current passport wireless? I don’t believe this is possible.

3

An other external drive via usb to mypassort.
For second backup of pictures from mypassport to that other external drive.
Not possible?

Groeten

Xavier

4

Again, don’t believe this is possible.
You can first transfer the pictures from one passport to the computer and from the computer to another passport.