A Network Attached Storage device gives you a centralized place to store files, run backups, host media, and self-host services. In 2025, the options range from elegant plug-and-play units to powerful DIY builds. Here is how to choose the right one.
Why Get a NAS?
- Centralize all your files in one place accessible by every device
- Replace Dropbox and Google Drive with your own private storage
- Automatic backup for all PCs and Macs on your network
- Run a Plex or Jellyfin media server
- Docker support for self-hosting any service
- RAID protection so a single drive failure does not lose your data
Best NAS Devices in 2025
Synology DS223 – Best 2-Bay for Most People
The Synology DS223 (~$300 without drives) is the gold standard for home NAS. DSM (DiskStation Manager) is the best NAS operating system available, with a polished interface, excellent mobile apps, and an extensive package ecosystem. The DS223 supports 2 drives, Docker, and Synology’s own cloud sync and backup tools.
Pros: Best software, easiest setup, reliable, great mobile apps
Cons: More expensive than alternatives, limited CPU for heavy Docker use
Synology DS923+ – Best 4-Bay for Power Users
The Synology DS923+ (~$600 without drives) steps up to 4 drive bays and a more powerful AMD Ryzen processor. Handles multiple Docker containers, Plex transcoding, and heavier workloads easily. The right choice if you plan to self-host seriously.
QNAP TS-233 – Best Budget Option
The QNAP TS-233 (~$200 without drives) offers solid performance at a lower price. QTS (QNAP’s OS) is capable if less polished than DSM. Good for users who want NAS functionality without the Synology premium.
Terramaster F2-423 – Best Value Performance
The Terramaster F2-423 (~$250 without drives) packs an Intel N5105 processor that comfortably handles Plex hardware transcoding, multiple Docker containers, and general NAS duties. Great value if Synology’s premium is too much.
DIY TrueNAS Build – Best for Maximum Control
Building your own TrueNAS machine gives you complete control over hardware and ZFS storage features. Start with a used Dell/HP server from eBay or a new mini ITX build. TrueNAS Scale runs Linux containers and VMs natively. Best for those who want enterprise-grade ZFS storage management. Requires more setup and Linux knowledge.
Drives to Buy
Always use NAS-rated drives in a NAS. Consumer drives are not rated for 24/7 operation. Top picks:
- WD Red Plus 4TB – Reliable, widely used, good warranty
- Seagate IronWolf 4TB – Slightly faster, competitive pricing
For a 2-bay NAS, start with 2x 4TB in RAID 1 (mirror) for 4TB usable with full redundancy. One drive can fail without data loss.
RAID Levels Explained
- RAID 1 (Mirror): 2 drives, one copy each. If one fails, your data is safe. Half your total capacity is usable.
- RAID 5: 3+ drives, one drive worth of parity. Lose one drive without data loss. Best capacity efficiency with redundancy.
- No RAID: More storage, no protection. Risky for important data.
What to Run on Your NAS
Beyond file storage, a Synology or QNAP can run:
- Nextcloud: Self-hosted Google Drive replacement
- Plex or Jellyfin: Media server for all your movies and shows
- Vaultwarden: Self-hosted password manager
- Pi-hole: Network-wide ad blocking
- OpenClaw: AI home automation hub
Our Pick for Most People
The Synology DS223 with 2x WD Red Plus 4TB drives. Total cost around $450, gives you 4TB of redundant storage, the best NAS software available, and room to self-host Nextcloud and a handful of Docker services. Reliable enough to run 24/7 for years.
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