Install My Book at Router

beachfarmer wrote:
If i connect My Book to router will it recognize it as simple storage?

It depends on your router. 

…can I connect [a My Book USB drive] to My Cloud USB without install and It be recognized as USB storage?

Yes, you can do that, as long as the drive is formatted with supported partitions as described in the documentation.

By the way, you’re posting in the “My Book Live” NAS forum – but you’re asking questions about the My Cloud NAS – I suspect a moderator will move this thread to the correct location.