Do I actually need hardware transcoding for Plex or Jellyfin?+
Only if your player and your file do not match. If every device direct-plays your files (same codec, container, and resolution they support), even a weak NAS is fine. The moment you stream a 4K HDR file to a phone, a browser, or over limited bandwidth, the server has to transcode. That is when an Intel Quick Sync iGPU (UGREEN, QNAP, Asustor, TerraMaster) matters and a chip without an iGPU (Synology DS923+) struggles. Be honest about your devices before deciding.
Why is Synology ranked behind cheaper boxes if its software is the best?+
Because this is a media-server guide, and transcoding is where Synology has gone backwards. Recent DSM versions dropped or limited hardware video transcoding, and the chips Synology ships are weak for it. The software is still the best in the business for backups, photos, and reliability, which is why the DS224+ still earns a high software score. But if your priority is Plex or Jellyfin transcoding, you are paying a premium for the wrong strengths.
Should I buy the NAS with drives included or diskless?+
Buy diskless and add your own drives. Prices here are diskless because that is how these are mostly sold and how you should buy them. Pick drives separately based on capacity and warranty (CMR drives, not SMR, for a NAS). One caution: Synology has been steering buyers toward its own branded drives through compatibility lists, so check the current list before committing if you go Synology.
How does Frank make money?+
We use affiliate links. If you buy through one of our search links, we may earn a small commission from the retailer at no extra cost to you. That commission never changes our rankings or scores. We rank on transcoding capability, software, noise, and price, and we call out every weakness, including on our top pick. If a product is not worth buying, we say so regardless of what it would pay us.