Synology NAS Buying Guide 2026

The Heart of Your Data — Powered by DSM

Every Synology DiskStation runs DiskStation Manager (DSM) — Synology’s award-winning operating system. DSM transforms a simple NAS into a full-featured server with file sharing, automatic backup, photo management, surveillance, Docker containers and more. DSM receives free updates for the life of the product, including security patches and new features.

Key DSM Features

• Synology Photos: A private, self-hosted alternative to Google Photos. AI-powered face and scene recognition, automatic mobile backup, and shared family albums — all stored on your NAS, not in the cloud.
• Active Backup for Business: Free enterprise-grade backup for PCs, servers, VMs (VMware/Hyper-V) and Microsoft 365/Google Workspace. No per-device licensing fees.
• Hyper Backup: Versioned backups of your NAS to external drives, another Synology NAS, or Synology C2 cloud storage. Full 3-2-1 backup strategy from one app.
• Synology Drive: Your own private Dropbox. Real-time file sync across all your devices with versioning and on-demand sync.

Choosing the Right DiskStation

• Budget 2-bay: DS223j — entry-level NAS for basic file sharing and media streaming. ARM-based, ideal for home users on a budget.
• Plus 2-bay: DS225+ — Intel Celeron-powered 2-bay with hardware transcoding, Synology Photos, Docker and Active Backup. The sweet spot for home and small office.
• Plus 2-bay Ryzen: DS725+ — AMD Ryzen R1600 with 2x 2.5GbE, more RAM and faster performance. For power users who want a 2-bay with serious processing power.
• Compact 4-bay: DS425+ — Intel Celeron 4-bay in a compact form factor. Great for RAID 5/SHR with parity protection in a small footprint.
• Best Seller 4-bay: DS925+ — AMD Ryzen 4-bay with 2x 2.5GbE, 2x M.2 NVMe slots, expandable to 9 bays. Our most popular NAS for home and SMB.
• 5-bay powerhouse: DS1525+ — AMD Ryzen 5-bay with 4x 2.5GbE, 2x M.2 NVMe, expandable to 15 bays. Ideal for growing businesses and media professionals.
• 8-bay enterprise: DS1825+ — AMD Ryzen 8-bay with 4x 2.5GbE, 2x M.2 NVMe, expandable to 18 bays. For large file servers, multi-user environments and virtualisation.
• Previous gen 4-bay: DS423+ — still a capable Intel-based 4-bay at a lower price point.

Rack-Mounted Storage for Server Rooms

Synology’s RackStation range brings DiskStation-quality DSM software to standard 19-inch rack form factors. Perfect for businesses with existing server racks that need centralised storage, backup and surveillance.

• Compact rackmount: RS422+ — 4-bay 1U rackmount with AMD Ryzen R1600, 2x 1GbE, 2GB ECC RAM. Runs the full DSM suite including Active Backup, Surveillance Station and Docker. Ideal for small server rooms and remote offices.

Your Own Private Cloud, Zero Complexity

BeeStation is Synology’s answer to cloud storage subscriptions. Instead of paying monthly for Google One, iCloud or Dropbox, you buy a BeeStation once and get 4TB of personal cloud storage that you own forever. No monthly fees, no data mining, no storage limits to worry about.

• BeePhotos: Automatic photo and video backup from iOS and Android. AI-powered organisation with face recognition and scene detection — just like Google Photos, but on your own device.
• BeeFiles: Access, share and sync files from any device, anywhere. Share links with friends and family without cloud subscriptions.
• Setup in minutes: Plug in power and Ethernet, scan the QR code with your phone, and you’re done. No technical knowledge required.
• BST150-4T — the only model, and it includes a 4TB hard drive pre-installed.

Purpose-Built Drives for Synology NAS

Synology’s HAT (Hard drive And Tough) series are 3.5-inch SATA drives designed and tested specifically for Synology NAS. They’re the only drives that receive firmware-level integration with DSM, meaning you get proactive health monitoring, vibration compensation tuned to Synology chassis, and guaranteed compatibility — no more checking the Synology compatibility list.

Why Choose Synology HAT Over Other NAS Drives?

• DSM integration: HAT drives report health data directly to DSM’s Storage Manager, including predicted lifespan and early failure warnings that go beyond standard S.M.A.R.T. monitoring.
• Vibration optimisation: Firmware is calibrated for multi-bay Synology NAS enclosures, reducing rotational vibration in 4+ bay units where drive-to-drive interference is common.
• Guaranteed compatibility: No guessing — every HAT drive is certified for every current Synology NAS.

HAT3300 Series (Standard)

• HAT3300-2T — 2TB, ideal for light home use and basic file storage.
• HAT3300-4T — 4TB, our second best-selling drive. Great value for 2-bay home NAS setups.
• HAT3300-6T — 6TB, a balanced choice for home and small office.

HAT3310 Plus Series (High Performance)

• HAT3310-8T — 8TB, 7200 RPM, 256MB cache. For 4+ bay NAS with heavier workloads.
• HAT3310-12T — 12TB, 7200 RPM. The sweet spot for capacity vs cost in business NAS.
• HAT3310-16T — 16TB, 7200 RPM. Our best seller. Maximum capacity per bay for large storage pools.

SSD Caching & Storage Acceleration

Synology’s SNV series NVMe SSDs are designed for M.2 cache slots in DiskStation and RackStation. SSD caching dramatically improves random read/write performance for frequently accessed files, virtual machines and databases without replacing your existing hard drives.

• M.2 2280 cache: SNV3410-400G — 400GB NVMe SSD for M.2 cache slots. Ideal for read/write caching in DS925+, DS1525+ and DS1825+.
• High endurance: SNV5420-800G — 800GB NVMe with higher write endurance for sustained write-intensive workloads like surveillance recording and VM hosting.

Both SSDs feature power-loss protection and are validated for 24/7 operation in Synology NAS.

AI-Powered Cameras for Surveillance Station

Synology’s cameras are designed to work seamlessly with Surveillance Station on DSM. Each Synology camera includes a free camera licence (normally $80+ per third-party camera), and features on-edge AI analytics for person, vehicle and intrusion detection — reducing false alerts from animals, shadows and weather.

• Indoor turret: TC500 — 5MP AI-powered turret camera with wide dynamic range, IR night vision and built-in microphone. PoE powered, IP67 rated. Includes free Surveillance Station licence.
• Outdoor bullet: BC500 — 5MP AI bullet camera with the same AI analytics as TC500. Ideal for building exteriors, car parks and entry points. PoE powered with IP67 weatherproofing.
• Outdoor WiFi: CC400W — 4MP outdoor cube camera with WiFi connectivity. No Ethernet cabling required — ideal for locations where running cable is impractical. Night vision and two-way audio.

Surveillance Station licensing: Every Synology NAS includes 2 free camera licences. Synology-branded cameras (BC500, TC500, CC400W) each include 1 additional free licence. Third-party ONVIF cameras require additional licence purchases.