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Product Code: DS925+

Synology DiskStation® DS925+ 4-Bay NAS Enclosure | Dual 10GbE Ports, Dual M.2 NVMe Cache Slots, 4GB ECC Memory, Expansion Support, Centralized Data Management & High-Speed Backup Solution

  • AMD Ryzen V1500B quad-core 2.2 GHz processor
  • 4GB DDR4 ECC SODIMM memory (expandable up to 32GB)
  • 4 x 3.5"/2.5" SATA HDD/SSD hot-swappable drive bays
  • 2 x M.2 2280 NVMe SSD slots for system caching or storage pools
  • Up to 522 MB/s sequential read and 565 MB/s sequential write speed
  • 2 x 2.5GbE (RJ-45) networking ports with link aggregation and failover support
  • 2 x USB 3.2 Gen 1 ports
  • 1 x Expansion port (supports 1x DX525 expansion unit for up to 9 drive bays)
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Description

Synology DiskStation® DS925+ 4-Bay NAS Enclosure

The Synology DiskStation DS925+ is an agile, high-performance 4-bay desktop NAS built for small businesses, creative professionals, and remote teams requiring scalable centralized storage. Powered by an AMD Ryzen quad-core processor and featuring native dual 2.5GbE connectivity with M.2 NVMe caching slots, it provides high-throughput file sharing, multi-endpoint backup consolidation, and seamless data management via Synology’s DiskStation Manager (DSM) operating system.

 

Key Features & Business Benefits

  • 4 Drive Bays with Multi-Unit Expansion: Supports 4 x 3.5"/2.5" SATA hard drives or SSDs natively, expandable up to 9 total drive bays using a Synology DX525 expansion unit to scale storage seamlessly as business data expands.

  • AMD Ryzen Quad-Core Processor: Powered by an AMD Ryzen V1500B quad-core processor running at 2.2 GHz with hardware encryption (AES-NI) to deliver fast sequential file access and encrypted data throughput.

  • 4GB DDR4 ECC RAM (Expandable to 32GB): Outfitted with Error-Correcting Code memory that automatically detects and corrects bit errors, maintaining system stability for multi-user tasks and virtualization.

  • Upgraded Dual 2.5GbE Connectivity: Features two built-in 2.5 Gigabit Ethernet RJ-45 ports supporting Link Aggregation and Failover protection for faster network transfer speeds and link reliability.

  • Dual M.2 2280 NVMe Slots: Built-in NVMe slots enable high-speed SSD caching to boost random IOPS performance or can be configured as dedicated high-speed storage pools without occupying any primary drive bays.

  • Enterprise Synology DSM Ecosystem: Includes hardware-accelerated AES-NI encryption, Btrfs snapshot technology, Synology Drive team file sync, and Surveillance Station video security management.

 

Primary Use Cases

  • Centralized Private Cloud & File Collaboration: Serving as an on-premise private cloud repository for cross-departmental file sharing, secure remote access, and real-time document sync.

  • Automated Multi-Platform Backups: Consolidating license-free automated backups for PCs, Macs, physical servers, virtual machines (VMware/Hyper-V), and SaaS accounts (Microsoft 365 and Google Workspace).

  • High-Speed Creative Workflows: Archiving and streaming 4K/8K video assets, raw photography libraries, and graphics projects over upgraded 2.5GbE network connections.

  • IP Video Surveillance Management: Functioning as a dedicated Network Video Recorder (NVR) with Synology Surveillance Station for multi-camera management and automated local recording.

 

Frequently Asked Questions (FAQ)

Q: Can the storage capacity of the DS925+ be expanded beyond 4 drive bays?
A: Yes. The base unit houses 4 SATA drives natively, and connecting a Synology DX525 expansion unit expands the total system capacity up to 9 drive bays to accommodate long-term storage growth.

Q: What network transfer speeds does the DS925+ support?
A: The DS925+ comes natively equipped with dual 2.5GbE RJ-45 ports, delivering sequential read throughput up to 522 MB/s and write speeds up to 565 MB/s when utilizing Link Aggregation over multi-gigabit network infrastructures.

Q: How do the M.2 NVMe slots function on the DS925+?
A: The two built-in M.2 2280 NVMe slots allow you to set up high-speed SSD caching to accelerate random read/write IOPS for standard HDD pools, or configure them as primary NVMe storage pools using supported Synology NVMe drives.

Q: Are specific drives required for the DS925+?
A: Synology strongly recommends using certified drives from the compatibility list—such as Synology Plus (HAT3300) or Enterprise (HAT5300) series hard drives and SSDs—to ensure full compatibility, accurate health telemetry, and long-term operating reliability.

Description