My Cloud EX2 Ultra Hard Drive Compatibility

I have two WD Caviar Green 3 TB WD30EZRX drives that came out of a defunkt My Book Duo. Can I drop these into an empty EX2 Ultra and make it work?

Hi @donaldfisher,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting:
https://support-en.wd.com/app/ask

Thank you @Keerti_01. Pushing questions to the support desk sort of defeats the purpose of the forum, does it not?