Can I backup My Passport Ultra to another?

I have a 3Tb My Passport Ultra which contains all my photos. I would like to have these backed up so am considering buying another My Passport Ultra.

Before I do does the WD Backup software allow me to backup one Ultra drive to another? As I only have 1 USB C port on my laptop I would have to buy a USB splitter so I have the ability to connect the two devices at the same time. I would back up the main device on a daily basis and the second one probably on a weekly basis.

If you have any other suggestions about a smart(er) way to backup my main drive I’d be happy to hear any suggestions.

After connecting both My Passport Ultra devices, you would be able to select My Passport drives as a source and destination in WD Backup tool. For more details, refer below article.