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Synology DiskStation DS925+

4-bay NAS server - 4 GB DDR4 ECC RAM- AMD Ryzen V1500B (without hard disk)

849€95
Recycling charge of 0€50
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Overview

DS925+: Versatile 4-bay storage with expansion possibilities

The Synology DS925+ is a 4-bay 2.5"/3.5" NAS designed for professionals and advanced users who want an advanced and expandable storage solution with the possibility of adding 5 extra bays with theDX525 expansion unit. Overall responsiveness can be enhanced with the installation of 2 NVMe SSDs for read and write data caching. In terms of external connectivity, the Synology DS925+ offers 2 x 2.5 GbE LAN ports to ensure smooth transfers to and from the NAS. Powered by Synology DiskStation Manager (DSM), the DS925+ offers a flexible all-in-one solution for data sharing, synchronisation, backup and monitoring.

Versatile storage for all uses

  • Sequential read performance of up to 522MB/s and sequential write performance of up to 565MB/s enable fast file sharing, synchronisation, streaming and backup for multiple users.
  • Supports 4 x 2.5"/3.5" SATA HDD/SSD expandable up to 9 drives with a Synology DX525 expansion unit.
  • Up to 32GB of DDR4 ECC memory to ensure protection against potential crashes and accidental data changes thanks to automatic data error correction.
  • Two RJ45 2.5 GbE ports can be linked using link aggregation to provide automatic network failover and load balancing.
  • Upgrade your storage platform to meet the most demanding requirements with two integrated NVMe M.2 2280 SSD slots.

Private cloud

Access files from all your devices and protect them with intelligent versioning. Manage, share and synchronise your data across multiple locations.

  • Create your own personal cloud with Synology's private cloud solution. Simplify file access and consolidate data management for easy file sharing and collaboration.
  • Efficiently back up and organize your photos and videos with management tools for hobbyists and professionals. Automatically organise your content in albums and create secure sharing links for your family, friends or customers.
  • Cross-site file sync allows collaborators to sync individual files or folders between Synology devices, whether at home, in the office, or around the world. Combine convenient access with complete data ownership.
  • Reduce your on-premises storage footprint and take advantage of data centre network throughput with Hybrid Cloud Technology. Set up Hybrid Share folders to efficiently store your cold data in the cloud, while keeping frequently used files cached locally on your DS923+ and accessible with LAN throughput.

Multi-layer backup

Back up files, folders, physical devices, virtual machines and SaaS applications with free solutions, and protect your NAS with built-in technologies.
  • Consolidate and automate backup tasks for PCs, file servers, virtual machines, SaaS applications and more with Active Backup Suite. Manage remote device backups via a centralised portal and quickly restore specific files or entire devices to keep your business running smoothly. Integrated remote backup solutions make it easy to set up 3-2-1 backups.
  • Protect all data, applications and configurations on your Synology systems with full scheduled backups to local and remote servers, external disks or cloud storage destinations, including Synology C2 Storage.
  • Configure the creation of efficient snapshots, shared folders and LUNs, at a specific point in time and at intervals of only five minutes. Allow users to easily restore previous versions of files without assistance, quickly recover virtual machines and copy snapshots to another server for fast storage failover.

Intelligent Monitoring

Turn your Synology device into a complete video management system for a wide range of compatible IP cameras.

  • Protecting your business has never been easier with centralized management, support for over 8,300 IP camera models, and remote monitoring and playback. Synology's video management system provides all the tools you need for live monitoring, investigation, management and backup.
  • C2 Surveillance allows you to continue accessing surveillance footage if your recording server is disabled, by saving it on your local server as well as on C2 Cloud. End-to-end encryption protects streams from unauthorised access, while low-latency recording allows you to view the last crucial seconds recorded before losing connection to the server.

Key features :

  • Processor AMD Ryzen Embedded V1500B (Quad-Core 2.2 GHz - 8 Threads)
  • 4 GB DDR4 ECC (1 x 4 GB - 2 Slots - 32 GB max; 4 GB module: D4ES04-4G, 8 GB module: D4ES03-8G, 16 GB module: D4ES03-16G)
  • 2 2.5 GbE LANs (with aggregation or failover)
  • 4 SATA 6 Gbit/s 2.5"/3.5" bays and two M.2 NVMe slots for SSD cache and expansion to 9 bays with a DX525.
  • External file systems: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT
  • Supports collaboration with Synology Chat instant messaging service, Synology Office online editor and Synology Calendar scheduling assistant
  • Synology Chat: 150 users max.
  • Synology MailPlus / MailPlus Server: 90 users max(5 licenses included)
  • Synology Office: 80 suggested users
  • Synology Drive: 80 simultaneous sync clients
  • Maximum number of connections: 8 VPN protocols supported
  • Network Protocols: SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
  • Virtual Machine Manager: 8 machines recommended(1 licence supplied)
  • Virtualisation: VMware ESXi 6.5 and VAAI, Windows Server 2022 Yes, Citrix Ready Yes, OpenStack
  • Security: Firewall, encrypted shared folder, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, automatic connection blocking, Let's Encrypt support, HTTPS(customisable encryption suite)
  • Maximum number of IP cameras: 40(2 camera licences included)
Information provided by our tech department This NAS is only compatible with Synology disks. You can refer to the compatibility list
Specifications
Select your criteria

General information

Product name

Synology DiskStation DS925+

Brand

Synology

Model

DS925+

Processor

CPU frequency

2.2 GHz

Memory size

4 GB

Memory type

DDR4 ECC

Network

Network standard(s)

2.5 Gbps Gigabit Ethernet (2.5 GbE)

Network connector(s)

2 X 2.5 Gigabit Ethernet - RJ45 Female

Wake On LAN

Yes

DLNA certification

Yes

Storage

Internal interface

2 X M.2 - PCI-E 3.0 x4
4 X Serial ATA 6Gb/s (SATA Revision 3)

Hard drive format

4 X 3" 1/2
2 X M.2
4 X 2" 1/2

Hard drive

No

Number of discs

0

Max number of discs

4

RAID supported

Yes

Supported RAID Modes

SHR
JBOD
6
5
10
1
0

File system

Btrfs
Ext4

Connector(s)

2 X USB 3.0

Compatibility

Server functions

FTP
Multimedia
Photo
Video surveillance
Virtualization
Web

Windows ADS

Yes

iSCSI (SCSI encapsulation)

Yes

Download without PC

Yes

Scalable

Yes

Physical characteristics

Rackable

No

Sound level

20.5 dB

Consumption

37.91 W

Width

199 mm

Height

166 mm

Depth

223 mm

Weight

2.26 kg

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

Synology GmbH

Postal address

Grafenberger Allee 295, 40237 Düsseldorf, Deutschland

Electronic Address

de_sales@synology.com

Product referenced on 12 May 2025

Customer reviews
Global rating
10/10
based on 4 reviews Editorial and moderation guide
  • 75%
    3 reviews
  • 25%
    1 review
  • 0%
  • 0%
  • 0%
  • by YvesG
    Posted on 14 Mar 2026
    Bought on 14 Feb 2026 from LDLC
    Number of reviews: 3 Average rating: 10

    Perfect

    This NAS works well. It is fast. Faster than a 214play.
    The data transfer went well.
    I am satisfied with my purchase.

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  • by Phil
    Posted on 5 Mar 2026
    Bought on 3 Feb 2026 from LDLC
    Number of reviews: 1 Average rating: 10

    Simple order of a super NAS

    - Simple ordering and delivery.
    - Excellent NAS (I have experience with the previous model, which unfortunately broke down following an electrical accident). Once configuration and customization are complete, the NAS is very easy to maintain and does what it’s supposed to do.
    - The NAS isn’t really “plug and play” if you want to customize it and get the most out of it. Initial setup isn’t very simple unless you have the time to read and try the instructions.

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  • by DamienD
    Posted on 3 Feb 2026
    Bought on 3 Jan 2026 from LDLC
    Number of reviews: 2 Average rating: 9

    High-quality NAS

    It's the best compromise in terms of price for a 4-bay model. It's a NAS with the best components before the 1525+.
    Otherwise, it's very, very easy to install. Very powerful. Meets my expectations.

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  • by titigaming
    Posted on 6 Aug 2025
    Bought on 28 May 2025 from LDLC
    Number of reviews: 1 Average rating: 8

    great product but be careful

    I ordered this product because being a content creator I need something to store all my data except that I ordered Seageate HDDs except when I wanted to configure it I realized that it was not compatible and by going to the Synology site I realized that only their disk to them Synology are compatible. So be careful to pay attention to that.
    Very good product otherwise, I recommend it.

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