WD has discontinued the single disk version of the My Cloud, name My Cloud personal. They replaced it with My Cloud Home Personal, removing features such as having different used permissions and multiple shared folders.

The My Cloud Home is very different from its predecessors – My Book and My Cloud home network storage devices. If you simply want to increase your network storage as I do – adding it to a 3TB My Book Live and two 6TB My Cloud network storage devices – you may be disappointed to find that the My...

If you have a previous MyCloud NAS Appliance this is nothing like the original. It is a sharing device and requires software on each PC to do backups. The USB is only for importing files and can't be use as a connection to an additional Hard Drive for extra storage.

This is not Network Attached Storage. It is some kind of Cloud hybrid that can be used to share files over the internet. It is not suitable for Plex, unless you use the built in Plex application, meaning you can't attach this and other storage and share your media through a single Plex server.