On sale is this more 'high end' NAS from TerraMaster for the lowest price yet and features 4 disk bays with an Intel Celeron J3455 quad-core CPU, a single 10GbE LAN port, two 1GbE LAN ports with failover and link aggregation support, 4GB RAM (upgradable) and 2 USB 3.0 ports on the rear.
Recently TerraMaster released TOS 5.0 which is a whole new operating system different to TOS 4.0 with a lot more features, cleaner UI, more apps and overall runs more smoothly. With TOS 5.0 I use the new Surveillance Manager to record my camera footage straight to the NAS and the new CloudSync app for syncing my OneDrive and Google Drive to the NAS as a backup.
Alternatively you can 'unofficially' install Synology DSM on this NAS and experience all the apps and features that Synology provide in their OS. Alternatively if you're just after basic file storage the F4-210 4 Bay NAS is on sale too for $287.99.
Can anyone comment on using this as strictly a plex server?