1. products list

Comparison results

DS1823xs+ DS224+
Hardware Specs
Hardware Specifications
CPU
CPU Model AMD Ryzen V1780B Intel Celeron J4125
CPU Quantity 1 1
CPU Core 4 4
CPU Architecture 64-bit 64-bit
CPU Frequency 3.35 (base) / 3.6 (turbo) GHz 2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
Memory
System Memory 8 GB DDR4 ECC SODIMM 2 GB DDR4 non-ECC
Memory Module Pre-installed 8 GB (8 GB x 1)
Total Memory Slots 2 1
Maximum Memory Capacity 32 GB (16 GB x 2) 6 GB (2 GB + 4 GB)
Notes
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical 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.
  • For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical 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 8 2
Maximum Drive Bays with Expansion Unit 18 (DX517 x 2)
M.2 Drive Slots 2 (NVMe)
Drive Type (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
  • 3.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
Notes
  • The hot swappable drive feature is not supported by M.2 SSD slots.
  • Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
External Ports
RJ-45 1GbE LAN Port 2 2
RJ-45 10GbE LAN Port 1
Out-of-Band Management LAN Port 1
USB 3.2 Gen 1 Port 3 2
Expansion Port 2
Expansion Port Type eSATA
USB Copy
Notes MTU value of 1GbE LAN port has a limit of 1500. MTU value of 1GbE LAN port has a limit of 1500.
PCIe
PCIe Expansion 1 x Gen3 x8 slot (x4 link)
Appearance
Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm 165 mm x 108 mm x 232.2 mm
Weight 6.2 kg 1.30 kg
Others
System Fan 120 mm x 120 mm x 2 pcs 92 mm x 92 mm x 1 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 23.6 dB(A) 22 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 250 watts 60 watts
AC Input Power Voltage 100V to 240V AC 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase 50/60 Hz, Single Phase
Power Consumption 87.93 watts (Access)
28.37 watts (HDD Hibernation)		 14.69 watts (Access)
4.41 watts (HDD Hibernation)
British Thermal Unit 300.23 BTU/hr (Access)
96.87 BTU/hr (HDD Hibernation)		 50.09 BTU/hr (Access)
15.04 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 GRAS 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%
  • 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 GRAS 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) 0°C to 40°C (32°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F)
Operating Humidity 8% to 80% RH 8% to 80% RH
Storage Humidity 5% to 95% RH 5% to 95% RH
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • EAC
  • CCC
  • KC
  • BIS
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • CCC
  • KC
  • BIS
Warranty 5 Years 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
Environment RoHS Compliant RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
Notes All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Single Volume Size
  • 200 TB (32 GB memory required)
  • 108 TB
 108 TB
Maximum Internal Volume Number 256 64
M.2 SSD Storage Pool Support*
SSD Read/Write Cache (Determining cache size)
SSD TRIM
RAID Group
Supported RAID Type
  • RAID F1
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
  • Basic to RAID 1
Volume Expansion with Larger HDDs
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • RAID 1
Volume Expansion by Adding a HDD
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6
Global Hot Spare Supported RAID Type
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Notes
  • Volumes over 108 TB require 32 GB of memory or more.
  • 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.
  • Creating M.2 storage pools requires the use of Synology-verified SSDs, which are rigorously tested under extreme temperature conditions. Thermal parameters for SSDs and NAS units are fine-tuned to ensure optimal management of thermal conditions under I/O-intensive environments. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • Actual maximum storage pool and volume sizes vary depending on drives 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
  • Btrfs
  • ext4
External Drives
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
File Services
File Protocol
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Number of SMB Connections (FSCT-Based) 340 5
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes
  • Connection value of this model is tested with Synology SATA SSD fully populated and up to four 10GbE 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
  • 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 2,048 512
Maximum Local Groups 512 128
Maximum Shared Folder 512 128
Maximum Shared Folder Sync Tasks 12 4
Hybrid Share
Hybrid Share Folder Number 15 10
Hyper Backup
Folder and Package Backup
Entire System Backup
Notes Full-system backup requires DSM 7.2 or later. Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
Log Center
Syslog Events per Second 3,000 800
Virtualization
VMware vSphere ESXi 8.0 U2, ESXi 8.0 U1, ESXi 8.0, ESXi 7.0 U3, ESXi 7.0 U2, ESXi 7.0 U1, ESXi 7.0, ESXi 6.7 U3, ESXi 6.7 U2, ESXi 6.7 U1, ESXi 6.7, ESXi 6.5 U3, ESXi 6.5 U2, ESXi 6.5 U1, ESXi 6.5
Microsoft Hyper-V Windows Server 2022
Citrix XenServer XenServer 8, Citrix Hypervisor 8.2 LTSR CU1
OpenStack Cinder
General Specifications
Supported Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
  • Chrome
  • Firefox
  • Edge
  • Safari
  • 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 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. 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 AI Console
Third-Party AI Model Integration
Maximum De-Identification Rate 340 words per second
Notes
  • De-identification performance measurement: Filters for Credit Card Numbers, IBAN, Individual Taxpayer Identification Number, SSN, and Names applied to a 4,355-word English text.
  • To enable de-identification, your device must have at least 8 GB of memory and Container Manager installed.
Synology Chat
Maximum Number of Users 400 100
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.
  • 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 80
SAN Manager
Maximum iSCSI Target Number 64 2
Maximum LUN 128 4
LUN Clone/Snapshot, Windows ODX
Synology MailPlus / MailPlus Server
Free Email Accounts 5 (Additional accounts require purchase of licenses) 5 (Additional accounts require purchase of licenses)
Maximum Number of Users 710 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).
  • 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
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 256 128
Maximum Snapshots per LUN 64 32
Maximum Snapshots per System 4,096 1,024
Maximum Replication Tasks for Shared Folders 32 16
Maximum Replication Tasks for LUNs 16 8
Maximum Replication Tasks per System 32 16
Surveillance Station
Default Licenses 2 (Additional cameras require purchase of licenses) 2 (Additional cameras require purchase of licenses)
Maximum IP Cameras and Total FPS (H.264)
  • 1080p: 75 channels, 2100 FPS
  • 3M: 75 channels, 1500 FPS
  • 5M: 75 channels, 900 FPS
  • 4K: 55 channels, 550 FPS
  • 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: 75 channels, 2250 FPS
  • 3M: 75 channels, 2250 FPS
  • 5M: 75 channels, 1500 FPS
  • 4K: 75 channels, 900 FPS
  • 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.
  • 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 610 10
Maximum Number of Hosted Files 5,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) 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.
  • 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 590 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
  • 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 8 (Learn more) 2 (Learn more)
Recommended Virtual DSM Number (Licenses required) 8 (including 1 Free License) 2 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size. The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections 12 4
Hardware Specs
Hardware Specifications
CPU
CPU Model
DS1823xs+ AMD Ryzen V1780B
DS224+ Intel Celeron J4125
CPU Quantity
DS1823xs+ 1
DS224+ 1
CPU Core
DS1823xs+ 4
DS224+ 4
CPU Architecture
DS1823xs+ 64-bit
DS224+ 64-bit
CPU Frequency
DS1823xs+ 3.35 (base) / 3.6 (turbo) GHz
DS224+ 2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
DS1823xs+
DS224+
Memory
System Memory
DS1823xs+ 8 GB DDR4 ECC SODIMM
DS224+ 2 GB DDR4 non-ECC
Memory Module Pre-installed
DS1823xs+ 8 GB (8 GB x 1)
DS224+
Total Memory Slots
DS1823xs+ 2
DS224+ 1
Maximum Memory Capacity
DS1823xs+ 32 GB (16 GB x 2)
DS224+ 6 GB (2 GB + 4 GB)
Notes
DS1823xs+
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical 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.
  • For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
DS224+
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical 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
DS1823xs+ 8
DS224+ 2
Maximum Drive Bays with Expansion Unit
DS1823xs+ 18 (DX517 x 2)
DS224+
M.2 Drive Slots
DS1823xs+ 2 (NVMe)
DS224+
Drive Type (See all supported drives)
DS1823xs+
  • 3.5" SATA HDD
  • 2.5" SATA SSD
  • M.2 2280 NVMe SSD
DS224+
  • 3.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
DS1823xs+
DS224+
Notes
DS1823xs+
  • The hot swappable drive feature is not supported by M.2 SSD slots.
  • Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
DS224+
External Ports
RJ-45 1GbE LAN Port
DS1823xs+ 2
DS224+ 2
RJ-45 10GbE LAN Port
DS1823xs+ 1
DS224+
Out-of-Band Management LAN Port
DS1823xs+ 1
DS224+
USB 3.2 Gen 1 Port
DS1823xs+ 3
DS224+ 2
Expansion Port
DS1823xs+ 2
DS224+
Expansion Port Type
DS1823xs+ eSATA
DS224+
USB Copy
DS1823xs+
DS224+
Notes
DS1823xs+ MTU value of 1GbE LAN port has a limit of 1500.
DS224+ MTU value of 1GbE LAN port has a limit of 1500.
PCIe
PCIe Expansion
DS1823xs+ 1 x Gen3 x8 slot (x4 link)
DS224+
Appearance
Size (Height x Width x Depth)
DS1823xs+ 166 mm x 343 mm x 243 mm
DS224+ 165 mm x 108 mm x 232.2 mm
Weight
DS1823xs+ 6.2 kg
DS224+ 1.30 kg
Others
System Fan
DS1823xs+ 120 mm x 120 mm x 2 pcs
DS224+ 92 mm x 92 mm x 1 pcs
Fan Speed Mode
DS1823xs+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
DS224+
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
DS1823xs+
DS224+
Brightness Adjustable Front LED Indicators
DS1823xs+
DS224+
Power Recovery
DS1823xs+
DS224+
Noise Level*
DS1823xs+ 23.6 dB(A)
DS224+ 22 dB(A)
Scheduled Power On / Off
DS1823xs+
DS224+
Wake on LAN / WAN
DS1823xs+
DS224+
Power Supply Unit / Adapter
DS1823xs+ 250 watts
DS224+ 60 watts
AC Input Power Voltage
DS1823xs+ 100V to 240V AC
DS224+ 100V to 240V AC
Power Frequency
DS1823xs+ 50/60 Hz, Single Phase
DS224+ 50/60 Hz, Single Phase
Power Consumption
DS1823xs+ 87.93 watts (Access)
28.37 watts (HDD Hibernation)
DS224+ 14.69 watts (Access)
4.41 watts (HDD Hibernation)
British Thermal Unit
DS1823xs+ 300.23 BTU/hr (Access)
96.87 BTU/hr (HDD Hibernation)
DS224+ 50.09 BTU/hr (Access)
15.04 BTU/hr (HDD Hibernation)
Notes
DS1823xs+
  • 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 GRAS 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%
DS224+
  • 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 GRAS 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
DS1823xs+ 0°C to 40°C (32°F to 104°F)
DS224+ 0°C to 40°C (32°F to 104°F)
Storage Temperature
DS1823xs+ -20°C to 60°C (-5°F to 140°F)
DS224+ -20°C to 60°C (-5°F to 140°F)
Operating Humidity
DS1823xs+ 8% to 80% RH
DS224+ 8% to 80% RH
Storage Humidity
DS1823xs+ 5% to 95% RH
DS224+ 5% to 95% RH
Certification
DS1823xs+
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • EAC
  • CCC
  • KC
  • BIS
DS224+
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • CCC
  • KC
  • BIS
Warranty
DS1823xs+ 5 Years
DS224+ 2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
Notes
DS1823xs+ The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
DS224+
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
  • Extended Warranty Plus is only available in Europe and North America. Refer to the Extended Warranty Plus website for details on supported countries/regions. (Learn more)
Environment
DS1823xs+ RoHS Compliant
DS224+ RoHS Compliant
Packaging Content
DS1823xs+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
DS224+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
DS1823xs+
DS224+
Notes
DS1823xs+
DS224+ All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Single Volume Size
DS1823xs+
  • 200 TB (32 GB memory required)
  • 108 TB
DS224+ 108 TB
Maximum Internal Volume Number
DS1823xs+ 256
DS224+ 64
M.2 SSD Storage Pool Support*
DS1823xs+
DS224+
SSD Read/Write Cache (Determining cache size)
DS1823xs+
DS224+
SSD TRIM
DS1823xs+
DS224+
RAID Group
DS1823xs+
DS224+
Supported RAID Type
DS1823xs+
  • RAID F1
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS224+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
RAID Migration
DS1823xs+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
DS224+
  • Basic to RAID 1
Volume Expansion with Larger HDDs
DS1823xs+
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS224+
  • Synology Hybrid RAID
  • RAID 1
Volume Expansion by Adding a HDD
DS1823xs+
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6
DS224+
Global Hot Spare Supported RAID Type
DS1823xs+
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS224+
Notes
DS1823xs+
  • Volumes over 108 TB require 32 GB of memory or more.
  • 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.
  • Creating M.2 storage pools requires the use of Synology-verified SSDs, which are rigorously tested under extreme temperature conditions. Thermal parameters for SSDs and NAS units are fine-tuned to ensure optimal management of thermal conditions under I/O-intensive environments. (Learn more)
DS224+
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • Actual maximum storage pool and volume sizes vary depending on drives 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
DS1823xs+
  • Btrfs
  • ext4
DS224+
  • Btrfs
  • ext4
External Drives
DS1823xs+
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
DS224+
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
File Services
File Protocol
DS1823xs+
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
DS224+
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Number of SMB Connections (FSCT-Based)
DS1823xs+ 340
DS224+ 5
Windows Access Control List (ACL) Integration
DS1823xs+
DS224+
NFS Kerberos Authentication
DS1823xs+
DS224+
Notes
DS1823xs+
  • Connection value of this model is tested with Synology SATA SSD fully populated and up to four 10GbE 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
DS224+
  • 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
DS1823xs+ 2,048
DS224+ 512
Maximum Local Groups
DS1823xs+ 512
DS224+ 128
Maximum Shared Folder
DS1823xs+ 512
DS224+ 128
Maximum Shared Folder Sync Tasks
DS1823xs+ 12
DS224+ 4
Hybrid Share
Hybrid Share Folder Number
DS1823xs+ 15
DS224+ 10
Hyper Backup
Folder and Package Backup
DS1823xs+
DS224+
Entire System Backup
DS1823xs+
DS224+
Notes
DS1823xs+ Full-system backup requires DSM 7.2 or later.
DS224+ Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
DS1823xs+
DS224+
Log Center
DS1823xs+
DS224+
Syslog Events per Second
DS1823xs+ 3,000
DS224+ 800
Virtualization
VMware vSphere
DS1823xs+ ESXi 8.0 U2, ESXi 8.0 U1, ESXi 8.0, ESXi 7.0 U3, ESXi 7.0 U2, ESXi 7.0 U1, ESXi 7.0, ESXi 6.7 U3, ESXi 6.7 U2, ESXi 6.7 U1, ESXi 6.7, ESXi 6.5 U3, ESXi 6.5 U2, ESXi 6.5 U1, ESXi 6.5
DS224+
Microsoft Hyper-V
DS1823xs+ Windows Server 2022
DS224+
Citrix XenServer
DS1823xs+ XenServer 8, Citrix Hypervisor 8.2 LTSR CU1
DS224+
OpenStack
DS1823xs+ Cinder
DS224+
General Specifications
Supported Protocols
DS1823xs+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
DS224+ SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
DS1823xs+
  • Chrome
  • Firefox
  • Edge
  • Safari
DS224+
  • Chrome
  • Firefox
  • Edge
  • Safari
Supported Language
DS1823xs+ 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
DS224+ 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
DS1823xs+ For an updated list of supported browser versions, check the DSM Technical Specifications.
DS224+ For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Central Management System
DS1823xs+
DS224+
Synology AI Console
DS1823xs+
DS224+
Third-Party AI Model Integration
DS1823xs+
DS224+
Maximum De-Identification Rate
DS1823xs+ 340 words per second
DS224+
Notes
DS1823xs+
  • De-identification performance measurement: Filters for Credit Card Numbers, IBAN, Individual Taxpayer Identification Number, SSN, and Names applied to a 4,355-word English text.
  • To enable de-identification, your device must have at least 8 GB of memory and Container Manager installed.
DS224+
Synology Chat
DS1823xs+
DS224+
Maximum Number of Users
DS1823xs+ 400
DS224+ 100
Notes
DS1823xs+
  • 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.
DS224+
  • 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
DS1823xs+
DS224+
Maximum Concurrent Download Tasks
DS1823xs+ 80
DS224+ 80
SAN Manager
DS1823xs+
DS224+
Maximum iSCSI Target Number
DS1823xs+ 64
DS224+ 2
Maximum LUN
DS1823xs+ 128
DS224+ 4
LUN Clone/Snapshot, Windows ODX
DS1823xs+
DS224+
Synology MailPlus / MailPlus Server
DS1823xs+
DS224+
Free Email Accounts
DS1823xs+ 5 (Additional accounts require purchase of licenses)
DS224+ 5 (Additional accounts require purchase of licenses)
Maximum Number of Users
DS1823xs+ 710
DS224+ 20
Notes
DS1823xs+
  • 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).
DS224+
  • 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
DS1823xs+
DS224+
DLNA Compliance
DS1823xs+
DS224+
Synology Photos
DS1823xs+
DS224+
Facial Recognition
DS1823xs+
DS224+
Object Recognition
DS1823xs+
DS224+
Notes
DS1823xs+
DS224+ Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.
Snapshot Replication
DS1823xs+
DS224+
Maximum Snapshots per Shared Folder
DS1823xs+ 256
DS224+ 128
Maximum Snapshots per LUN
DS1823xs+ 64
DS224+ 32
Maximum Snapshots per System
DS1823xs+ 4,096
DS224+ 1,024
Maximum Replication Tasks for Shared Folders
DS1823xs+ 32
DS224+ 16
Maximum Replication Tasks for LUNs
DS1823xs+ 16
DS224+ 8
Maximum Replication Tasks per System
DS1823xs+ 32
DS224+ 16
Surveillance Station
DS1823xs+
DS224+
Default Licenses
DS1823xs+ 2 (Additional cameras require purchase of licenses)
DS224+ 2 (Additional cameras require purchase of licenses)
Maximum IP Cameras and Total FPS (H.264)
DS1823xs+
  • 1080p: 75 channels, 2100 FPS
  • 3M: 75 channels, 1500 FPS
  • 5M: 75 channels, 900 FPS
  • 4K: 55 channels, 550 FPS
DS224+
  • 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)
DS1823xs+
  • 1080p: 75 channels, 2250 FPS
  • 3M: 75 channels, 2250 FPS
  • 5M: 75 channels, 1500 FPS
  • 4K: 75 channels, 900 FPS
DS224+
  • 1080p: 25 channels, 750 FPS
  • 3M: 25 channels, 600 FPS
  • 5M: 25 channels, 480 FPS
  • 4K: 20 channels, 200 FPS
Notes
DS1823xs+
  • 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.
DS224+
  • 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
DS1823xs+
DS224+
Maximum Number of Users
DS1823xs+ 610
DS224+ 10
Maximum Number of Hosted Files
DS1823xs+ 5,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
DS224+ 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
DS1823xs+
  • 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.
DS224+
  • 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
DS1823xs+
DS224+
Maximum Number of Users
DS1823xs+ 590
DS224+ 10
Notes
DS1823xs+
  • 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
DS224+
  • 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
DS1823xs+
DS224+
Recommended Virtual Machine Instances
DS1823xs+ 8 (Learn more)
DS224+ 2 (Learn more)
Recommended Virtual DSM Number (Licenses required)
DS1823xs+ 8 (including 1 Free License)
DS224+ 2 (including 1 Free License)
Notes
DS1823xs+ The specifications vary depending on system configuration and memory size.
DS224+ The specifications vary depending on system configuration and memory size.
VPN Server
DS1823xs+
DS224+
Maximum Connections
DS1823xs+ 12
DS224+ 4