Synology DS225+ NAS 2 bays + 2 Hard Drives 16 TB (RAID1)

The Synology DiskStation DS225+ is a 2-bay NAS (network-attached storage) designed to centralize your files, organize backups, and share data locally or remotely via Synology DSM. With 2 hard drives of 16 TB configured in RAID 1, your data is duplicated on both drives to better protect you in case of a drive failure (service continuity + replacement of the faulty drive without data loss).

Main Features of the DS225+

• Processor: Intel Celeron J4125 (quad-core)

• Memory: 2 GB (expandable up to 6 GB)

• Network: 1× 2.5 GbE + 1× 1 GbE for good speeds on compatible networks

• Performance: up to ~282 MB/s (read) and ~217 MB/s (write) sequentially

• DSM Ecosystem: file management, backups (e.g., Hyper Backup), synchronization/"private cloud" (Synology Drive), etc.

• Video Surveillance: up to 25 IP cameras (manufacturer recommendation depending on scenario)

Capacity with 2×16 TB in RAID 1

• Raw capacity: 32 TB

• Usable capacity (RAID 1): ≈ 16 TB (the second drive is a security mirror)