My Book Duo raid capability

External Drives My Book Duo
1

I am thinking of buying the My Book Duo.

When using Raid 0 or 1 can an external drive attached to the USB expansion ports be included in the Raid array to form a higher level Raid array?

2

Hi there, welcome to the WD community.

The USB ports on the My Book Duo are only for expansion, it will not make the USB devices a part of the RAID.