Skip to content
Order before 3pm, Monday to Friday, for next-working-day dispatch on in-stock items*
Courier networks run at peak load in December. We will always try to dispatch same day.
We appreciate your business throughout the year.
Availability:
165 in stock
Save £320.21 Save £320.21

£402.28 (Excl. VAT)

Current price - £482.74 (Inc. VAT)
£402.28 - £402.28
Current price- - £482.74
Availability:
165 in stock
  • Visa
  • Mastercard
  • American Express
  • Apple Pay
  • Google Pay
  • Paypal
  • Shop Pay
  • Klarna
  • Bank Transfer (BACS)
Trade pricing for verified resellers, proforma issued on official company letterhead for PO processing.
Education & Public Sector Pricing available for schools, universities, NHS, and government organisations. Contact our Public Sector Team on 020 8191 9223 or email info@screenmoove.com.
  • Description
  • Specifications
  • Downloads
  • Synology DiskStation DS425+ | 4-Bay 2.5GbE NAS Server with Intel Celeron J4125 & 2GB DDR4 RAM

    2.5GbE connectivity and diverse storage options
    The DS425+ features built-in 2.5GbE networking and supports both SATA SSDs and HDDs in 2.5"/3.5" internal bays, as well as M.2 NVMe drives via M.2 slots for use cache.
     
    Store, share, and protect
    Manage all your documents, photos, and other files, back up applications and devices, and protect your assets with professional video surveillance.
     
    Private cloud for seamless data Access

    Synology DiskStation DS425+


    Streamlined file management and collaboration
    Store, sync, access, and share data from any device, wherever you are. Work seamlessly between different platforms and devices, and access your files through mobile apps, desktop clients, and a browser-based interface. Quickly and easily roll back files in case of accidental deletion, mistakes, malware, etc., with versioning.
     

    Synology DiskStation DS425+


    A private photo storage and management solution
    Effortlessly back up and organize photos, videos, and other visual assets using intuitive management tools. Automatically organize your content into albums and create secure share links for stakeholders and teammates.

    Synology DiskStation DS425+

     
    Boost team productivity with collaborative tools
    Enhance workplace collaboration with Synology's productivity solutions. Create, edit, and share documents across teams in real time. Host an on-premises mail server to provide web-based email access while maintaining full data ownership. Additionally, stay connected through secure one-on-one chats, public channels, encrypted private channels, and group conversations. 
     
    Multi-site synchronization to empower global workflows

    Synology DiskStation DS425+


    NAS-to-NAS synchronization
    Improve workflow efficiency and team alignment across data sites with automatic one- or two-way site-to-site syncing. Files and folders are kept up-to-date across sites, so everyone stays aligned, whether at home, in the office, or across different branches — all while maintaining full control of your data.
     

    Synology DiskStation DS425+


    Cloud-powered multi-site syncing
    Empower global workflows with high-speed access to data from anywhere in your network. Our hybrid cloud solution caches frequently used files locally for rapid access, while less frequently accessed data is stored in the cloud, reducing your on-site storage requirements.
      

    Synology DiskStation DS425+


    Sync to public cloud providers
    Automatically keep data in sync between Synology NAS and major cloud providers, including BackBlaze B2, Dropbox, Google Drive, and Microsoft OneDrive. Multiple protocol support, client-side encryption, and customizable sync and bandwidth controls enable efficient storage management across various platforms.
     
    Comprehensive data backup, protection, and recovery solutions

    Synology DiskStation DS425+


    Back up PCs, smartphones, cloud apps, and more
    Consolidate and automate backup tasks for PCs, file servers, VMs, SaaS applications, and more. Administer device backups remotely through a centralized portal and quickly restore specific files or entire devices to keep your business up and running. Take advantage of built-in backup solutions designed to protect your data with seamless 3-2-1 backup configurations.
     

    Synology DiskStation DS425+


    Comprehensive and flexible Synology system backups
    Protect all data, applications, and configurations on your Synology systems with comprehensive scheduled backups, including bare-metal backups, to local and remote servers, external drives, or cloud storage destinations, including Synology C2 Storage.
     

    Synology DiskStation DS425+


    Tamper-proof protection with immutable snapshots
    Safeguard critical LUNs and shared folders with automated immutable snapshots backed by custom retention policies. Built-in support for offsite replication further ensures robust business continuity. 
     
    Smart surveillance

    Synology DiskStation DS425+


    Synology Surveillance Station
    Protecting your business has never been easier, with centralized management, support for over 8,700 IP camera models, and remote monitoring and playback. Synology’s scalable video management system provides all the tools you need for live monitoring, investigation, management, and backup.
     

    Synology DiskStation DS425+


    Dual recording to the cloud
    Secure your surveillance footage with robust cloud backup that supports end-to-end encryption. Our cloud-based surveillance backup solution safeguards your Surveillance Station recordings, allowing you to access, view, share, and download footage through a convenient web portal. Ensure your data remains available even if your on-premises system is compromised.
     
    Centralized monitoring and management
    Monitor and manage your Synology fleet from a central interface, on-prem or in the cloud
     
    Central Management System
    Manage Synology servers from a central console using group policies, task delegation, batch updates, and more.
     
    Active Insight
    Monitor your global Synology fleet's performance, backup status, login activity, and more with the power of the cloud.
     
    Supercharge your setup with Synology router
    Pair your NAS with Synology RT6600ax or WRX560 to maximize 2.5GbE connectivity. Enjoy high-speed transfers and secure your network with VLANs, threat prevention, and web filtering — all through a familiar Synology interface.
     
    Extended protection with Extended Warranty
    The DS425+ is backed by Synology’s 3-year hardware warranty.11 An optional 2-year extended warranty is available in select regions to extend coverage to 5 years.
     
    Hardware Overview

    Synology DiskStation DS425+


    1. Status indicator
    2. Drive status indicators
    3. Drive tray lock
    4. USB 3.2 Gen 1 port
    5. Power button and indicator
    6. Drive trays
    7. Fans
    8. 1GbE RJ-45 port
    9. 2.5GbE RJ-45 port
    10. Reset button
    11. USB 3.2 Gen 1 port
    12. Power port
    13. Kensington security slot
    14. M.2 NVMe SSD slots

  • Feature Description
    CPU Model Intel Celeron J4125
    CPU Quantity 1
    CPU Cores 4
    CPU Architecture 64-bit
    CPU Frequency 2.0 GHz (base) / 2.7 GHz (turbo)
    Hardware Encryption Engine Yes
    System Memory 2 GB DDR4 non-ECC
    Total Memory Slots 1
    Maximum Memory Capacity 6 GB (2 GB + 4 GB)
    Memory Notes Synology may replace memory modules with same or higher frequency depending on supply life cycle; compatibility and stability are verified to ensure identical performance.
    For optimal compatibility and reliability, use Synology memory modules. Warranty/support may be limited if non-Synology memory is used.
    Drive Bays 4
    M.2 Drive Slots 2 (NVMe)
    Supported Drive Types 3.5" SATA HDD; 2.5" SATA SSD; M.2 2280 NVMe SSD
    Hot Swappable Drive* Yes (not supported on M.2 SSD slots)
    Storage Notes Compatible drives are mandatory; consult the compatibility list before purchasing drives.
    The hot swappable drive feature does not apply to M.2 SSD slots.
    RJ-45 1GbE LAN Port 1 (MTU up to 1,500 bytes)
    RJ-45 2.5GbE LAN Port 1
    USB 3.2 Gen 1 Ports 2
    Dimensions (H × W × D) 166 mm × 199 mm × 223 mm
    Weight 2.18 kg
    System Fan 92 mm × 92 mm × 2 pcs
    Fan Speed Modes Full-Speed, Cool, Quiet
    Front LED Brightness Adjustable
    Power Recovery Supported
    Noise Level* 21.6 dB(A)
    Scheduled Power On/Off Supported
    Wake on LAN / WAN Supported
    Power Adapter 90 W
    AC Input 100–240 V AC, 50/60 Hz, Single Phase
    Power Consumption* 28.25 W (Access); 6.10 W (HDD Hibernation)
    BTU 96.33 BTU/hr (Access); 20.79 BTU/hr (HDD Hibernation)
    Measurement Notes Power consumption measured per Synology methodology.
    Noise tested with Synology SATA SSDs, idle state; microphones at 1 m front/rear; background 16.49–17.51 dB(A); 24.25–25.75 °C; 58.2–61.8% RH.
    Operating Temperature 0 °C to 40 °C (32 °F to 104 °F)
    Storage Temperature -20 °C to 60 °C (-5 °F to 140 °F)
    Operating Humidity 8% to 80% RH
    Storage Humidity 5% to 95% RH
    Certifications FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS
    Hardware Warranty 3 years (extendable to 5 years with EW201 or Extended Warranty Plus)
    Warranty Notes Warranty period starts from purchase date on receipt.
    Extended Warranty Plus availability: Europe & North America; EW201/EW202: Asia, Africa, Oceania.
    Environmental Compliance RoHS Compliant
    Packaging Content Main Unit ×1; Accessory Pack ×1; AC Power Adapter ×1; AC Power Cord ×1; RJ-45 LAN Cable ×2
    Optional Accessories DDR4 non-ECC SODIMM: D4NS01-4G
    Enterprise 3.5" SATA HDD: HAT5300 Series
    Plus 3.5" SATA HDD: HAT3300 Series
    Enterprise 2.5" SATA SSD: SAT5200 Series
    Enterprise M.2 2280 NVMe SSD: SNV3400 & SNV5400 Series
    Max Single Volume Size 108 TB
    Max Internal Volumes 32
    M.2 SSD Storage Pool Supported*
    SSD Cache SSD Read/Write Cache supported
    SSD TRIM Supported
    Supported RAID Types Synology Hybrid RAID, Basic, JBOD, RAID 0/1/5/6/10
    RAID Migration Basic→RAID 1; Basic→RAID 5; RAID 1→RAID 5; RAID 5→RAID 6
    Volume Expansion (Larger HDDs) SHR, RAID 1/5/6/10
    Volume Expansion (Add HDD) SHR, JBOD, RAID 5
    Global Hot Spare (RAID) SHR, RAID 1, RAID 5
    Storage Notes Each internal volume expandable up to 108 TB.
    Actual max pool/volume sizes depend on drive sizes, bays, and RAID.
    Usable capacity is lower due to filesystem and metadata.
    M.2 storage pools require Synology-verified SSDs; thermal parameters tuned for I/O-intensive environments.
    Internal File Systems Btrfs, ext4
    External File Systems Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT
    Protocols SMB, AFP, NFS, FTP, WebDAV, Rsync
    Max SMB Connections 10 (FSCT-based)
    Windows ACL Integration supported
    NFS Kerberos Authentication supported
    File Services Notes Tested with Synology SATA HDDs fully populated and all onboard NICs.
    Models with expandable memory tested at max capacity.
    SMB performance evaluated with FSCT 1.3 (HomeFolder workload, 600 s) using Windows Server 2022 DC, 8× Windows 10 clients, directory leasing enabled.
    Max Local Users 512
    Max Local Groups 128
    Max Shared Folders 128
    Max Shared Folder Sync Tasks 4
    Max Hybrid Share Folders 10
    Hyper Backup Folder/Package backup; entire system backup
    High Availability Synology High Availability supported
    Syslog Events/sec 800
    VMware vSphere ESXi 6.5–8.0 U2 (various U releases)
    Microsoft Hyper-V Windows Server 2022
    Citrix XenServer 8; Citrix Hypervisor 8.2 LTSR CU1
    OpenStack Cinder
    Supported Protocols SMB1/2/3, NFSv3/v4/v4.1, NFS Kerberized, iSCSI, HTTP/HTTPS, FTP, SNMP, LDAP, CalDAV
    Supported Browsers Chrome, Firefox, Edge, Safari
    Supported Languages English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português (BR/EU), Türkçe, Český, ไทย, 日本語, 한국어, 繁體中文, 简体中文
    Central Management System Supported
    Synology AI Console Third-party AI model integration supported
    Synology Chat Users Up to 100 (measured with simulated users)
    Download Station Tasks Maximum 80 concurrent
    Max iSCSI Targets / LUNs Targets: 2; LUNs: 4 (LUN clone/snapshot, Windows ODX supported)
    MailPlus Accounts 5 free (more via licenses)
    MailPlus Users (Suggested) Up to 20 (with specified workload and features enabled)
    DLNA Compliance Media Server compliant
    Synology Photos Facial recognition; object recognition (requires ≥4 GB RAM)
    Max Snapshots / Folder 128
    Max System Snapshots 1,024
    Default Camera Licenses 2 (additional licenses required for more cameras)
    Max IP Cameras / FPS (H.264) 1080p: 40 ch / 800 FPS; 3M: 35 ch / 350 FPS; 5M: 28 ch / 280 FPS; 4K: 17 ch / 170 FPS
    Max IP Cameras / FPS (H.265) 1080p: 40 ch / 1200 FPS; 3M: 40 ch / 600 FPS; 5M: 40 ch / 480 FPS; 4K: 20 ch / 200 FPS
    Surveillance Notes Figures based on fully populated device, default memory, continuous recording.
    Capabilities vary by configuration, drive performance, enabled features, and workloads.
    Viewer channels can be up to 2× the max cameras for same codec/resolution.
    Synology Drive Users Up to 20 (suggested)
    Max Hosted Files 500,000 (indexed/hosted by Drive)
    Synology Office Users Up to 20 (suggested; client performance dependent)
    Virtual Machine Manager Recommended VMs: 2; Recommended Virtual DSM: 2 (incl. 1 free license)
    VPN Server Connections Maximum 4
  • Description Downloads
    Synology DiskStation DS425+ Intel® Celeron® J4125 2 GB DDR4 NAS/Storage Server DataSheet Download
Synology DiskStation DS425+ Intel® Celeron® J4125 2 GB DDR4 NAS/Storage Server
Synology DiskStation DS425+ Intel® Celeron® J4125 2 GB DDR4 NAS/Storage Server
SKU: DS425+
🚚 Order before 3PM, get it by tomorrow.
Synology DiskStation DS425+ Intel® Celeron® J4125 2 GB DDR4 NAS/Storage Server
SKU: DS425+
🚚 Order before 3PM, get it by tomorrow.

Book a Free Product Demo

Remote or on-site. No obligation.

Integrator or Installer?

Trade pricing, volume discounts, same-day collection.

Request a Trade Account

Education & Public Sector Solutions

Exclusive pricing, flexible terms, and dedicated support for schools, universities, NHS, and government organisations.

Official Purchase Orders We accept formal POs with VAT-compliant invoicing for all verified institutions.
Contract & Volume Discounts Competitive rates for multi-site, long-term, or framework-based deployments.
Dedicated Account Management Single point of contact for lead times, coordination, and sourcing.
Flexible 30-Day Terms Available to verified schools, councils, and government bodies.
Next-Day Delivery

Same-day shipping

Trade Account

Trade account available

Trusted Customers

See Our Latest Reviews

Public Sector Friendly

We Accept Purchase Orders

Have more questions ? Talk to our experts...

Need help choosing the right product?

Need help choosing the right product?

Speak directly with a dedicated Screen Moove expert and get the right solution, first time.

Call us on: 020 8191 9223
Email us: info@screenmoove.com

Contact us

Simply complete our contact form, and we will promptly respond to your inquiries.

If you have any questions or enquiry, please fill out the form below with all of your details and we'll get back to you shortly.