Synology DS925+ DiskStation 4-Bay 2.5GbE Tower NAS

Consolidate, Expand, and Protect with High-Speed 2.5GbE Storage The Synology DS925+ delivers powerful, scalable storage designed for seamless file management, multi-site synchronization, endpoint backup, and smart surveillance — all in a compact 4-bay NAS with built-in 2.5GbE networking. Highlights

4-bay NAS expandable to 9 bays with DX525 expansion unit

Supports up to 180 TB of raw storage with expansion2

Dual 2.5GbE ports delivering 522/565 MB/s sequential read/write performance3

Built-in M.2 NVMe slots for cache acceleration or additional storage pools

Centralized file storage, sharing, and versioning across sites and devices

Comprehensive data backup for endpoints, servers, and cloud applications

Scalable IP camera management for up to 40 devices with Surveillance Station4

Extendable 3-year warranty with optional 2-year extension

Ideal Use Cases

Growing Businesses: Centralize file storage, sync across offices, and scale on demand

Remote & Hybrid Work: Real-time multi-site file syncing and mobile access

Enterprise IT: Data protection, endpoint backup, and tamper-proof snapshots

Smart Surveillance: Manage up to 40 IP cameras with flexible cloud and on-prem recording

Key Features Storage & Expansion

Bays: 4 x 3.5"/2.5" SATA HDD/SSD bays

Expansion: Supports DX525 for additional 5 bays (total 9 bays)

Maximum Raw Capacity: 180 TB with 20 TB drives and expansion2

M.2 Slots: 2 x M.2 NVMe for cache or storage pool5

Performance

Network Ports: 2 x 2.5GbE

Sequential Read/Write: 522 MB/s read, 565 MB/s write3

Aggregated Link Support: Combine both ports for increased bandwidth

File Management & Cloud Collaboration

Private Cloud Access: File sharing via desktop, mobile apps, and browsers

File Versioning: Rollback to previous versions in case of accidental deletions

Multi-site Sync: Drive ShareSync for automatic site-to-site file updates

Cloud Integration: Sync with major public cloud providers

Backup & Data Protection

Endpoint Backup: PCs, Macs, and mobile devices

SaaS Backup: Microsoft 365, Google Workspace backup

Immutable Snapshots: Protect against ransomware and accidental deletion

System Backup: Full Synology NAS backup with Snapshot Replication

Surveillance

Surveillance Station: Manage, monitor, and archive video from up to 40 IP cameras4

Smart Event Detection: Motion, people, vehicle recognition

Dual Recording: Local and cloud storage options available

Management & Monitoring

Central Management System: Manage multiple Synology NAS devices centrally

Active Insight: Cloud-based monitoring of device health, performance, and backups9

Hardware & Protection

Processor: High-performance CPU optimized for storage and surveillance tasks

RAM: Expandable for heavier multitasking demands

Build: Compact tower chassis designed for professional installations

Warranty: 3-year hardware warranty, extendable to 5 years with optional plan10

Summary The Synology DS925+ is a compact yet powerful NAS built for organizations seeking scalable storage, real-time multi-site collaboration, complete data protection, and professional-grade surveillance management. Powered by 2.5GbE networking, integrated NVMe cache, and extensive Synology software solutions, it is the ultimate platform for modern data-centric businesses, enabling smooth operations whether in a single office or across multiple global locations.