Previous My Book drives topped out at 18TB and 36TB for the duo variant. Western Digital states that the reason for the expansion of storage is that most American Households now have at least 10 connected devices, and with the introduction of the new storage capacities means that more people can backup their devices without the worry of running out of storage.
The My Book is more suited to backing up photos, videos, files and whatnot from other portable storage devices. The My Book Duo on the other hand is a more advanced drive for full-on system backups that is RAID optimized that performs at a higher speed with RAID-1 with the option of two independent drives.
Security is governed by a back-up software with 256-bit AES hardware encryption with password protection. Both drives work with either windows or Mac, but the My Book Duo is formatted for Windows out of the box, though you can download the NTFS driver for macOS if needed through the software.
Pricing is not cheap with the 22TB My Book coming in at $600 or PHP 33,100 and the 44TB My Book Duo coming in at $1100 or PHP60,730 at current exchange rates. Expect prices to differ however once it reaches Philippine shores.

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