Name: DiskStation DS225+
Brand: Synology
SKU: DS225+
Availability: InStock

Brand: Synology

Product Code: DS225+

Availability: 10

Weight: 1.30kg

Dimensions: 16.50cm x 10.80cm x 23.22cm

Synology 2 Bay DiskStation DS225+

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Simplify your storage

Consolidate and safeguard

Up to 40 TB of raw storage

Capable storage

Built-in 2.5GbE port and over 282/217 MB/s sequential read/write

Versatile applications

Back up multiple endpoints, manage 25 IP cameras , or safely sync and share files across sites

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

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.

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. Learn more

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. Learn more

Multi-site synchronization to empower global workflows

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.

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.

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. Learn more

Comprehensive data backup, protection, and recovery solutions

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.

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.Learn more

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. Learn more

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 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.

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.Learn more

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.

Hardware Overview

① Status indicator ⑤ Copy button ⑨ 2.5GbE RJ-45 port

② LAN indicators ⑥ Power button and indicator ⑩ Reset button

③ Drive status indicators ⑦ Fan ⑪ USB 3.2 Gen 1 port

④ USB 3.2 Gen 1 port ⑧ 1GbE RJ-45 port ⑫ Power port

⑬ Kensington security slot

DSM Specifications
Storage Management	Maximum Single Volume Size	108 TB
	Maximum Internal Volume Number	32
	SSD TRIM
	Supported RAID Type	Synology Hybrid RAID Basic JBOD RAID 0 RAID 1
	RAID Migration	Basic to RAID 1
	Volume Expansion with Larger HDDs	Synology Hybrid RAID RAID 1
	Notes	Each internal volume (may consist of multiple drives) is expandable up to 108TB. Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration. Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
File System	Internal Drives	Btrfs ext4
	External Drives	Btrfs ext4 ext3 FAT32 NTFS HFS+ exFAT
File Services	File Protocol	SMB AFP NFS FTP WebDAV Rsync
	Maximum Number of SMB Connections (FSCT-Based)	5
	Windows Access Control List (ACL) Integration
	NFS Kerberos Authentication
	Notes	Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports Models with expandable memory are tested with the maximum supported quantity installed. SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration: Test workload: HomeFolder scenario provided by the FSCT tool Test duration: 600 seconds Domain controller & FSCT controller: Windows Server 2022 FSCT clients: 8 × Windows 10 machines SMB feature: Directory leasing enabled
Account & Shared Folder	Maximum Local User Accounts	512
	Maximum Local Groups	128
	Maximum Shared Folder	128
	Maximum Shared Folder Sync Tasks	4
Hybrid Share	Maximum Hybrid Share Folders	10
Hyper Backup	Folder and Package Backup
	Entire System Backup
High Availability	Synology High Availability
Log Center	Syslog Events per Second	800
General Specifications	Supported Protocols	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
	Supported Browsers	Chrome Firefox Edge Safari
	Supported Language	English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
	Notes	For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Central Management System
Synology Chat	Maximum Number of Users	100
	Notes	Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds. Models with expandable memory are tested with the maximum supported quantity installed.
Download Station	Maximum Concurrent Download Tasks	80
SAN Manager	Maximum iSCSI Target Number	2
	Maximum LUN	2
	LUN Clone/Snapshot, Windows ODX
Synology MailPlus / MailPlus Server	Free Email Accounts	5 (Additional accounts require purchase of licenses)
	Maximum Number of Users	20
	Notes	The suggested maximum number of users is based on the following workload: 20% of users with a 20,000 item mailbox randomly performing actions and receiving 240 emails per day, and 80% of users receiving 20 emails per day. Models with SSD support are tested with a single SSD volume. Models with expandable memory are tested with the maximum supported quantity installed. Operating in high-availability mode will incur additional overhead. Features enabled during evaluation: anti-spam, anti-virus, DNSBL, greylist, content scanning, and full-text search (English).
Media Server	DLNA Compliance
Synology Photos	Facial Recognition
	Object Recognition
	Notes	Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.
Snapshot Replication	Maximum Snapshots per Shared Folder	128
	Maximum of System Snapshots	256
Surveillance Station	Default Licenses	2 (Additional cameras require purchase of licenses)
	Suggested Maximum IP Cameras and Total FPS (H.264)	1080p: 25 channels, 750 FPS 3M: 25 channels, 350 FPS 5M: 25 channels, 280 FPS 4K: 17 channels, 170 FPS
	Suggested Maximum IP Cameras and Total FPS (H.265)	1080p: 25 channels, 750 FPS 3M: 25 channels, 600 FPS 5M: 25 channels, 480 FPS 4K: 20 channels, 200 FPS
	Notes	Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads. Use NVR Selector to quickly find a suitable model based on your requirements. The number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.
Synology Drive	Maximum Number of Users	10
	Maximum Number of Hosted Files	100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
	Notes	The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Models with SSD support are tested with a single SSD volume. Models with expandable memory are tested with the maximum supported quantity installed. Exceeding the recommended numbers above will not block application operations, but may result in longer response time. Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office	Maximum Number of Users	10
	Notes	The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Models with SSD support are tested with a single SSD volume. Models with expandable memory are tested with the maximum supported quantity installed. Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Virtual Machine Manager	Recommended Virtual Machine Instances	2
	Recommended Virtual DSM Number (Licenses required)	2 (including 1 Free License)
	Notes	The specifications vary depending on system configuration and memory size.
VPN Server	Maximum Connections	4

NAS
CPU Model	Intel Celeron J4125
CPU Quantity	1
CPU Core	4
CPU Architecture	64-bit
CPU Frequency	2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine	✓
Memory	2 GB DDR4 non-ECC
Drive Bays	2
Hot Swappable Drive	✓
RJ-45 1GbE LAN Port	1
USB 3.2 Gen 1 Port	2
System Fan	92 mm x 92 mm x 1 pcs
Power Supply Unit / Adapter	60 watts
Total Memory Slots	1
Maximum Memory Capacity	6 GB (2 GB + 4 GB)
Wake on LAN (WOL)	✓
LED Indicators	✓
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-20°C to 60°C (-5°F to 140°F)
Relative Humidity	5% to 95% RH