I use Kodi on an Nvidia Shield TV Pro instead of Plex so I don't have to transcode. My NAS is an 8-bay Synology DS unit on a rack shelf, it has bigger fans than an RS unit so it's quieter.
Data Hoarder
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
Are you specifically looking for SFF drive bays? Because my one recommendation about buying a refurbished server is get LFF 3.5 drives. The sff is such a limiting factor.
Do not put a rack mount server in a living room, especially a 1U. The boise will never be manageable for that kind of room.
Also, the server will idle around 100 watts. The NAS much less.
I suppose that’s what I needed to hear. Thank you very much! Do you happen to know some NAS that does well at transcoding and is within this €1500 range?
No, I don't keep track of consumer NAS as I DIY everything. I can recommend that but I recognize it's not for everyone. I see that it's popular to use an Intel NUC or similar as the server hosting Plex and other apps, and leave the NAS simply for storage; that's very enticing.
I can speak to the Synology RS1221+ as I own two. They are great NASs but they are terrible at compute/transcode.
You missed an important detail which is how much data do you need to store?
Those big servers are nice and powerful if you can stomach the power bill.
My current setup is the two Synology's in an HA pair for storage with a pair of similar spec Hyve servers for compute. If you're looking for an all in one unit, the big server is the way to go.
Oh I’d say not a lot of data at the moment. I have two 14 TB disks which I use as replicas. So I have 14 TB of total capacity roughly. I think a 4-bay NAS is good enough for start