A NAS (Network Attached Storage) is a small always-on device holding hard drives that everyone on your network can access. It's ideal for centralized backups, a personal media server (Plex/Jellyfin), photo libraries, and file sharing. If you have multiple devices, want automatic backups, or want to stream your own media library, a NAS is worth it. Note: the drives are usually bought separately.
A 2-bay NAS (in RAID 1) gives one drive's worth of storage with full redundancy — ideal for most homes. A 4-bay NAS with RAID 5 gives more usable capacity and resilience, suited to media servers and small businesses. Start with 2-bay unless you need 20TB+ usable or run heavy workloads like multiple Plex transcodes.
Synology vs QNAP — which should I buy?
Synology's DSM software is the most polished and beginner-friendly, with excellent backup and photo apps — the best choice for most home users. QNAP offers more hardware for the money (faster CPUs, 2.5GbE, M.2 slots at lower price points) and more flexibility, suiting power users comfortable with a busier interface. Both are reliable; pick Synology for simplicity, QNAP for raw value.
