Plex access to NAS326

Not sure how to achieve it natively on device but if you have a computer that can access a shared folder on the nas, you can map that as a network drive (in windows) and point the plex server software to that shared folder.

I don't think the 326 is powerful enough to handle plex hosting on its own. 

I forget where I read, but I saw somewhere it supposedly has an Intel atom processor. If true, then it is very underpowered for plex outside of network streaming.