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DiskStation

DS225+

Enterprise-grade diskstation storage solution

DS225+

DS225+ is backed by Synology’s 3-year hardware warranty.

Uncompromising performance

Throughput
Throughput
1x 1GbE LAN ports
Scalability
Scalability
2 drive bays
CPU
CPU
4-core Intel Celeron J4125 @ 2.0 (base) / 2.7 (turbo) GHz
Memory
Memory
2 GB DDR4 non-ECC, expandable to 6 GB (2 GB + 4 GB)

Performance backed by Synology drives

Designed for Synology systems, Synology drives deliver consistent performance and unmatched reliability for your deployments.

Hardware Overview

Trusted by professionals across all industries.

Powered by Synology DiskStation Manager

Enterprise-grade software solutions included

Redundant power

Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can be replaced without powering down the system.

Near-zero downtime

Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.Learn more

Next-generation file system

Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.Learn more

Secure and private

AES-256 encryption keeps locally-stored footage secure.

Access from anywhere, anytime

Access recordings and live streams whenever you want using a web browser, desktop client, or the DS cam mobile app.

Real-time alerts

Email, SMS, or push notifications alert you when incidents occur or predefined conditions are met.

(DS225plus)

Technical Specifications

Complete hardware and software specifications

CPU

CPU Model Intel Celeron J4125
CPU Quantity 1
CPU Cores 4
CPU Threads 4
CPU Architecture 64-bit
CPU Frequency 2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine Yes

Memory

System Memory 2 GB DDR4 non-ECC
Total Memory Slots 1
Maximum Memory Capacity 6 GB (2 GB + 4 GB)
Notes Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.

Storage

Drive Bays 2
Drive Type(See all supported drives) 3.5" SATA HDD 2.5" SATA SSD
Hot Swappable Drive* Yes
Notes Synology only guarantees full functionality, reliability, and performance for compatible drives. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article .

External Ports

RJ-45 1GbE LAN Port 1
RJ-45 2.5GbE LAN Port 1
USB 3.2 Gen 1 Port 2
USB Copy Yes
Notes MTU value of 1GbE LAN port has a limit of 1500.

Appearance

Size (Height x Width x Depth) 165 mm x 108 mm x 232.2 mm
Weight 1.3 kg

Others

System Fan 92 mm x 92 mm x 1 pcs
Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode
Brightness Adjustable Front LED Indicators Yes
Power Recovery Yes
Noise Level* 19.6 dB(A)
Scheduled Power On / Off Yes
Wake on LAN / WAN Yes
Power Supply Unit / Adapter 60 watts
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 16.98 watts (Access) 6.08 watts (HDD Hibernation)
British Thermal Unit 57.90 BTU/hr (Access) 20.73 BTU/hr (HDD Hibernation)
Notes For more information on how power consumption is measured, refer to this article . Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%

Temperature

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

Certification

Certification FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS

Warranty

Warranty 3-year hardware warranty, extendable to 5 years with EW201
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) EW201/EW202 is only available in Asia, Africa, and Oceania. Refer to the Extended Warranty website for details on supported countries/regions. ( Learn more )

Environment

Environment RoHS Compliant

Packaging Content

Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2

Optional Accessories

Optional Accessories DDR4 non-ECC SODIMM: D4NS01-4G Enterprise Series 3.5" SATA HDD: HAT5300 Series Plus Series 3.5" SATA HDD: HAT3300 Series Enterprise Series 2.5" SATA SSD: SAT5200 Series

Storage Management

Maximum Single Volume Size 108 TB
Maximum Internal Volume Number 32
SSD TRIM Yes
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 Yes
NFS Kerberos Authentication Yes
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

Hybrid Share Folder Number 10

Hyper Backup

Data & Folder Backup Yes
Entire System Backup Yes

High Availability

Synology High Availability Yes

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 .

Central Management System

Central Management System Yes

Synology AI Console

Third-Party AI Model Integration Yes

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 4
LUN Clone/Snapshot, Windows ODX Yes

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. Learn more Models with SSD support are tested with a single SSD volume. Models with expandable memory are tested with the maximum supported quantity installed. Learn more about memory requirements . 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 Yes

Synology Photos

Facial Recognition Yes
Object Recognition Yes
Notes Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.

Snapshot Replication

Maximum Snapshots per Shared Folder 128
Maximum Snapshots per LUN 32
Maximum Snapshots per System 1,024
Maximum Replication Tasks for Shared Folders 16
Maximum Replication Tasks for LUNs 8
Maximum Replication Tasks per System 16

Surveillance Station

Default Licenses 2 (Additional cameras require purchase of licenses)
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
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 video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution.

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. Learn more 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. Learn more 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 (Learn more)
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
SKU DS225plus
Brand SYNOLOGY
Shipping Weight 2.3000kg
Shipping Width 0.280m
Shipping Height 0.120m
Shipping Length 0.290m
Shipping Cubic 0.009744000m3
Manufacturer Warranty
3 Years Limited Warranty
Manufacturer Contact Info
http://www.synology.com 
n/a

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Synology DiskStation DS225+ ,2 Bay Intel Celeron J4125 4 core ,2GB DDR4 ,Diskless NAS

Model # DS225+

  • SKU: DS225plus

$528.00
$599.00
SAVE $71.00 (12%)
In Stock
Maximum Order Quantity 1



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