NAS Synology DiskStation DS423

Simplify your data management with the Synology DS423, a compact 4-bay NAS designed for secure private cloud storage, file sharing, backup, photo organization, and basic surveillance support. The DS423 supports up to 72 TB of raw capacity and provides multi-platform access so you can browse, edit, and share files from desktop clients, mobile apps, or web browsers. Built on Synology DiskStation Manager (DSM) and using the Btrfs file system, the DS423 offers snapshot-based protection and tools to manage file permissions and data ownership.

Advantages

The DS423 centralizes dispersed data from PCs, Macs, phones, and external drives, enabling straightforward synchronization and cross-platform sharing while retaining full ownership of stored content. It supports on-demand sync to minimize local device storage usage, integrates with public cloud services such as Google Drive, Dropbox, and Microsoft OneDrive, and provides license-free backup solutions for computers and mobile devices. The system also includes surveillance capabilities for up to 30 IP cameras, intuitive admin controls, and near-instantaneous snapshot replication for fast recovery.

Key specifications

• Drive bays: 4-bay NAS supporting up to 72 TB raw capacity
• File system: Btrfs with snapshot support
• Operating system: Synology DiskStation Manager (DSM)
• Camera support: Up to 30 IP cameras (from validated models and ONVIF-compatible devices)
• Cloud integration: Sync with Google Drive, Dropbox, Microsoft OneDrive
• Backup features: License-free backup solutions, real-time/scheduled backups, Snapshot Replication (RPO as low as 5 minutes)
• Access methods: Desktop clients, mobile apps, web browser access
• Data management: On-demand sync, file pinning for offline access, cross-server sync and sharing

How to use

Install hard drives into the four bays, connect the DS423 to your network, and complete initial setup through Synology DSM via a web browser. Import or sync files from computers, mobile devices, and external storage, then configure user accounts and folder permissions to control access. Install Synology Drive or Synology Photos apps on client devices to enable automatic mobile backups and on-demand sync. For surveillance, add IP cameras through Synology Surveillance Station and configure recording schedules, alerts, and retention policies. Use Snapshot Replication and backup tools to schedule regular backups and create point-in-time snapshots for fast recovery.

Recommendations

For reliable performance and redundancy, use enterprise- or NAS-rated hard drives sized to your storage needs and configure appropriate RAID levels. Regularly enable Snapshot Replication and off-site backups to protect against ransomware and accidental deletion. Ensure cameras used for surveillance are on the validated model list or ONVIF-compatible and review alerts and recording settings periodically.