Monoprice 4-Bay Diskless NAS Enclosure w/RAID, DLNA, FTP

Does anyone know if this can be used as a Plex Media Server (PMS)?

I don’t think so, the processor might be under-powered for a good transcoding, But on the other side you can use this as media storage for your server, maybe you can buy a NUC with i5 and that will be enough to run a really good PMS.