ASK NC

My Drobo 5n is beginning to show signs of failure (bay 1 consistently fails) and I was thinking to update to either a Synology or QNAP NAS. Currently, my Drobo has four 4 TB drive and one 8 TB drive. I like that if I want to upgrade a drive, I can just pull out the smallest and slap a new, bigger, one in.

Yes, this is something you can do with Synology NAS or Terramaster (less reliable).
DS920+ is a multimedia friendly model that also serves well as a backup and file server.
And this is just the tip of the iceberg.

I hope this helps.