Synology DiskStation DS225+ 2-Bay Desktop NAS

The Synology DiskStation DS225+ is a compact 2-bay desktop NAS designed for home offices, small businesses, and professional users who need reliable centralised storage, backup, file sharing, private cloud access, and business data protection.

Powered by an Intel Celeron J4125 quad-core processor and 2GB DDR4 non-ECC memory, the DS225+ supports 3.5-inch SATA HDDs and 2.5-inch SATA SSDs, hot-swappable drive bays, 2.5GbE networking, USB 3.2 Gen 1 connectivity, and Synology DiskStation Manager tools for backup, collaboration, surveillance, and storage management.

Key Features

• 2-bay desktop NAS enclosure for centralised storage, backup, and small business workflows
• Intel Celeron J4125 quad-core processor with 2.0GHz base and 2.7GHz turbo frequency
• 2GB DDR4 non-ECC system memory, expandable up to 6GB using compatible Synology memory
• Supports 3.5-inch SATA HDDs and 2.5-inch SATA SSDs
• Hot-swappable drive bays for easier drive installation and maintenance
• Supports Synology Hybrid RAID, Basic, JBOD, RAID 0, and RAID 1
• 1 x 2.5GbE RJ-45 LAN port and 1 x 1GbE RJ-45 LAN port
• 2 x USB 3.2 Gen 1 ports with USB Copy support
• Supports Btrfs and ext4 internal file systems
• SSD TRIM support for compatible SSD configurations
• Runs Synology DiskStation Manager for file sharing, backup, private cloud, surveillance, and business applications
• Supports Synology Drive, Synology Photos, Hyper Backup, Snapshot Replication, MailPlus, Virtual Machine Manager, and Surveillance Station
• Includes 2 default Surveillance Station camera licences; additional camera licences are sold separately
• Compact desktop design with 165 x 108 x 232.2 mm dimensions and 1.3kg weight

Product Overview

The Synology DiskStation DS225+ is built for customers who need a capable 2-bay NAS with stronger performance and better network flexibility than a basic entry-level storage device. It is suitable for small business file storage, office backup, shared folders, photo management, private cloud access, light virtualisation, and entry-level surveillance recording.

With two drive bays, users can choose a storage configuration that prioritises usable capacity or data redundancy. Supported RAID options include Synology Hybrid RAID, Basic, JBOD, RAID 0, and RAID 1. The DS225+ also includes both 2.5GbE and 1GbE LAN connectivity, giving users more flexibility for faster local transfers, backups, and shared storage access.

Through Synology DiskStation Manager, the DS225+ supports centralised file sharing, user permissions, PC and server backup, cloud synchronisation, snapshots, surveillance recording, selected collaboration tools, and business application support. It is a clean choice for users who need organised storage without relying on scattered external drives, because apparently "final-final-v7" folders were not humanity's finest invention.

Recommended Use Cases

• Small business file storage
• Home office backup
• Centralised team file sharing
• Private cloud access with Synology Drive
• PC and laptop backup
• Business document storage
• Photo and media storage
• Entry-level surveillance storage
• Light virtual machine workloads
• MailPlus and small-team collaboration
• External USB backup and USB Copy workflows
• Faster local transfers using 2.5GbE networking

Hardware Specifications

Model: Synology DiskStation DS225+

Product Type: 2-Bay Desktop NAS Enclosure

CPU: Intel Celeron J4125

CPU Cores / Threads: 4 cores / 4 threads

CPU Frequency: 2.0GHz base / 2.7GHz turbo

CPU Architecture: 64-bit

Hardware Encryption Engine: Supported

Memory: 2GB DDR4 non-ECC

Total Memory Slots: 1

Maximum Memory Capacity: 6GB (2GB + 4GB)

Drive Bays: 2

Compatible Drive Types: 3.5-inch SATA HDD, 2.5-inch SATA SSD

Hot-Swappable Drive Support: Yes

1GbE LAN Port: 1 x RJ-45

2.5GbE LAN Port: 1 x RJ-45

USB Ports: 2 x USB 3.2 Gen 1

USB Copy: Supported

Dimensions: 165 x 108 x 232.2 mm

Weight: 1.3kg

System Fan: 92 mm x 92 mm x 1

Noise Level: 19.6 dB(A)

Power Adapter: 60W

Power Consumption: 16.98W access / 6.08W HDD hibernation

Storage and DSM Features

Operating System: Synology DiskStation Manager

Maximum Single Volume Size: 108TB

Maximum Internal Volumes: 32

SSD TRIM: Supported

Supported RAID Types: Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1

RAID Migration: Basic to RAID 1

Volume Expansion: Synology Hybrid RAID and RAID 1 with larger HDDs

Internal File Systems: Btrfs, ext4

External File Systems: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT

File Protocols: SMB, AFP, NFS, FTP, WebDAV, Rsync

Maximum Local User Accounts: 512

Maximum Local Groups: 128

Maximum Shared Folders: 128

Maximum Shared Folder Sync Tasks: 4

Hybrid Share Folders: Up to 10

Hyper Backup: Folder, package, and entire system backup

Synology High Availability: Supported

Log Center: Up to 800 syslog events per second

VPN Server Connections: Up to 4

Business Application Support

Synology Drive: Up to 10 users

Synology Drive Hosted Files: Up to 100,000 indexed or hosted files

Synology Office: Up to 10 users

Synology Chat: Up to 100 users

Synology MailPlus: 5 free email accounts included

MailPlus Server: Up to 20 users

SAN Manager: Up to 2 iSCSI targets and 4 LUNs

Virtual Machine Manager: Recommended 2 virtual machine instances

Virtual DSM: Recommended 2, including 1 free licence

Snapshot Replication: Up to 1,024 system snapshots

Synology Photos: Facial recognition supported; object recognition requires memory upgraded to at least 4GB

Central Management System: Supported

Synology AI Console: Third-party AI model integration supported

Surveillance Station Support:

The DS225+ includes 2 default Surveillance Station camera licences. Additional camera licences are sold separately.

Supported camera performance includes:

H.264 1080p: up to 25 channels / 750 FPS

H.264 3MP: up to 25 channels / 350 FPS

H.264 5MP: up to 25 channels / 280 FPS

H.264 4K: up to 17 channels / 170 FPS

H.265 1080p: up to 25 channels / 750 FPS

H.265 3MP: up to 25 channels / 600 FPS

H.265 5MP: up to 25 channels / 480 FPS

H.265 4K: up to 20 channels / 200 FPS

Actual camera performance may vary depending on drive configuration, network conditions, camera settings, enabled features, and active workloads.

Important Compatibility Notes

This product is supplied as a NAS enclosure. Storage drives, memory upgrades, camera licences, and optional accessories may be sold separately unless specifically stated in the product offer.

To ensure this NAS meets your setup requirements, please check the following before ordering:

Required drive capacity and RAID setup

Compatible Synology-supported HDD or SSD model

Required usable storage after RAID configuration

Whether 2.5GbE networking is supported by the customer's router, switch, or network adapter

Whether memory expansion is needed for heavier workloads or Synology Photos object recognition

Surveillance camera requirements and any additional licence needs

Backup, file-sharing, private cloud, MailPlus, or virtualisation requirements

Whether external USB backup or USB Copy functionality is required

What's in the box
1 x Synology DS225+ NAS Unit
1 x AC Power Adapter
1 x AC Power Cord
2 x RJ-45 LAN cables
1 x Accessory Pack