The budget-minded enthusiast will find that the Synology DiskStation DS216play is a great choice if you are on the lookout for a 2-bay NAS unit. The dual-core CPU comes with floating point unit that helps the overall performance, but especially the creation of thumbnails for the media functions.
Good performance up to and above 110MB/s; Powerful dual-core CPU with H.265 codec support for 4K video transcoding; Complete entertainment hub functionality; Everything you'll want to backup from and to
No front USB 3.0 port; No drive bays for easy hot-swap