Western Digital PR4100 4-bay diskless NAS for file server, media

Just sold one of this pair of NAS servers.  Now I'm posting the second one.  This gently used Western Digital PR4100 is a 4-bay NAS designed for use as a file server or a media server.  It works great with Plex and is among the few Plex-approved NAS servers that provides hardware-accelerated encoding.  You can also use it as a backup server or as a WordPress or Joomla server for web development. It is diskless, but you can easily install up to four SATA hard drives.  (I've had four 14TB drives installed in it, for a capacity of up to 56TB!) You can also attach external USB drives for additional capacity or for easy file transfer.