DiskStation DS1823xs+

DiskStation DS1823xs+

Flexible large-scale storage for small and medium-sized businesses

Product Image DS1823xsplus
Product Image DS1823xsplus
Trusted by professionals across all industries.
Synology is a solid storage with great capabilities out of the box. The licensing model of all-inclusive software adds great value to the product.
Information Technology Manager - Government
Synology provides a single-platform solution for all of our backup needs in a cost effective manner.
Director of Enterprise Infrastructure - Education
Synology's DSM is a masterpiece, designed to be user-friendly even for non-IT professionals, helping us become less reliant on out IT teams.
Director Media Services - Media
Working with Synology Products has just been the best. Its an all in one product that can cater for all aspects of Storage.
Senior Systems Engineer - Media
The Synology brand is very feature-rich and unbeatable in terms of price/performance in the NAS segment. Our current testing was primarily focused on backup, which delivered reliability alongside adequate performance.
CEO - IT Services
Smooth storage server setup with intuitive OS and reliable automation features
Server Administrator - Retail
Private data center on your desk The DS1823xs+ is a powerful central storage server that can easily be deployed anywhere to provide shared data storage and sharing, endpoint and server backup, VM storage, surveillance management, and other business applications. It is perfect in settings where no dedicated server rack or data center is available. Download Datasheet Desktop-sized powerhouseOver 3,100/2,600 MB/s seq. read/write, built-in 10GbE, and up to 160 TB raw storage before expansion.Flexible configurationAdd up to 10 extra drive bays, 25GbE or Fibre Channel, and SSD cache volumes when needed.Versatile applicationsBack up 300 endpoints, manage 75 IP cameras, or safely sync and share files between devices and sites.
Safe, dependable, and scalableBuilt-in data integrity protection, remote management options, and easy hardware expansion make the DS1823xs+ dependable, easy to maintain, and cost efficient.Data integrity protectionThe Btrfs file system helps prevent data corruption or loss through metadata mirroring, file self-healing, and efficient point-in-time snapshots. ECC memory provides additional integrity safeguards.Efficient remote managementMonitor, manage, and replace drives and storage online in Synology DSM. Remotely reboot, reset, or view logs while the system is down thanks to out-of-band management (OOB).Plug-and-play expansionThe DS1823xs+ can be scaled to up to 18 bays by adding two DX517 expansion units without system downtime, thanks to online storage and volume expansion.
The performance you needConfigure the DS1823xs+ to handle any workload. Easily add 1/10/25GbE or Fibre Channel ports and designate NVMe or SATA SSD volumes as read/write cache to boost HDD performance.
The DS1823xs+ achieves up to 3,100 MB/s read and 2,600 MB/s write speeds
This device can be configured with up to 25GbE networking
The DS1823xs+ features two M.2 NVMe slots for caching or storage pool creation
Simply fasterExperience faster file indexing in Synology Drive and higher sequential throughput.
The DS1823xs+ is 48% faster in file indexing than its predecessor
It also delivers 40% higher sequential throughput with Encrypted Shared Folders compared to its predecessor
Store, share, and protectManage all your documents, photos, and other files, back up applications and devices, and protect your physical assets with professional video surveillance.Flexible file serverBackup repositoryBusiness application platformFlexible file serverUse the DS1823xs+ as a central file repository and data sharing hub. Provide easy access to business data from PCs, phones, and other devices, and set up powerful cross-site syncing to empower collaboration between offices or branches.
Private cloudA private cloud suite for file sharingEmpower your entire organization with a streamlined ability to access, share, and sync data from anywhere. Provide employees with access to corporate files through mobile apps, desktop clients, and a browser-based interface. Set granular file and folder access and sharing permissions. Maintain a full overview of file activities and track file share settings changes with detailed records in the Synology Drive Admin Console.Learn moreDependable and secure network storageUse shared folders on your Synology device as reliable storage available from anywhere on your local network over all common protocols (SMB/NFS/WebDAV/FTP). Protect your files against accidental changes and removal or even malware attacks with built-in snapshot technology and other backup options.
Cross-site syncingSecure site-to site file and folder syncingMake sure branches always have up-to-date copies of crucial documents and data available locally by syncing Synology systems one or two-way using Synology Drive ShareSync. Have files updated across locations each time there is a change to efficiently keep all stakeholders on the same page.Learn moreEfficient cross-site syncing through the cloudBoost syncing speeds, cut bandwidth use, and reduce your storage footprint by leveraging the powerful connectivity of our data centers. Synology Hybrid Share intelligently synchronizes data to Synology devices. Large or less frequently accessed files are stored on the cloud to reduce local storage requirements, while frequently used files are stored on local devices to provide users access at LAN speeds.Learn more
Backup repositoryBack up files, folders, physical devices, VMs, and SaaS applications with free solutions, and protect your NAS with built-in technologies.
Back up all your devicesCentralize your backup and recovery solutionConsolidate and automate backup tasks for PCs, file servers, VMs, SaaS applications, and more with Active Backup Suite. 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 remote backup solutions designed to protect your data with seamless 3-2-1 backup configurations.Learn more
Protect your Synology systemPerform full system backups with SynologyProtect all data, applications, and configurations on your Synology systems with comprehensive scheduled backups to local and remote servers, external drives, or cloud storage destinations including Synology C2 Storage.Learn moreProtect folders and LUNs with snapshotsConfigure efficient point-in-time snapshots of shared folders and LUNs at intervals as short as 5 minutes. Allow users to easily restore previous versions of files unassisted, quickly recover VMs, and copy snapshots to another server to benefit from rapid storage failover.Learn more
Business application platformHost cost-efficient business solutions, either through containers, virtual machines, or Synology DiskStation (DSM)’s own solutions, including a powerful free backup suite, a versatile mail server, and a surveillance VMS with transparent licensing.
Synology productivity solutionsCollaboration in a secure cloudCreate and edit documents, spreadsheets, and slides together with your whole team in real time. Easily migrate existing documents from other platforms and take ownership of your files in a secure private cloud.Learn moreSynology’s private cloud mail solution provides ease of use, full data ownership, and robust data security with a low total cost of ownership thanks to its perpetual licensing model.Learn moreKeep teams connected through encrypted one-on-one private chats, public channels, and group conversations. Efficiently organize discussions with bookmarks, searchable hashtags, and chatbots.Learn more
Containerization and virtualization-readyApplication test environmentRun Docker containers and VMs on DS1823xs+ using Docker and Synology Virtual Machine Manager (VMM) — a hypervisor for virtualized versions of Windows®, Linux®, and DSM — to safely test and evaluate applications.
Virtual DSM serves as a test environment for package updates or to add an additional layer of security between applications, systems, and data.Learn more

Performance backed by Synology drives

Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

HDD
Enterprise Series 3.5" SATA
SSD
Enterprise Series 2.5" SATA Enterprise Series M.2 NVMe

Get more with DiskStation Manager

Take advantage of a host of native productivity, management, and security solutions available in the web-based Synology DSM operating system.

Central Management System

Conveniently manage your fleet of Synology NAS from a centralized console.

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Security

Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.

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Synology High Availability

Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.

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Synology has you coveredThe DS1823xs+ is backed by Synology's 5-year limited warranty, including technical support and hardware replacement services to maximize your return on investment and ensure continued high-quality performance.Learn moreHardware Overview
  • 1Status Indicator
  • 2Alert Indicator
  • 3Power Button and Indicator
  • 4LAN Indicators
  • 5Drive Status Indicators
  • 6Drive Trays
  • 7Drive Tray Locks
  • 8USB 3.2 Gen 1 Port
  • 9Power Port
  • 10Fans
  • 11PCI Express Expansion Slot
  • 12Kensington Security Slot
  • 13Expansion Port
  • 141GbE RJ-45 Ports
  • 1510GbE RJ-45 Port
  • 16Reset Button
  • 17Management Port
  • 18USB 3.2 Gen 1 Ports
  • 19Expansion Port
  • 20Memory Slots
  • First Product Image
  • Second Product Image
  • Third Product Image
  • Fourth Product Image
  • Fifth Product Image
  • Sixth Product Image
Notes:Gartner® and Peer Insights™ are trademarks of Gartner, Inc. and/or its affiliates. All rights reserved. Gartner Peer Insights content consists of the opinions of individual end users based on their own experiences, and should not be construed as statements of fact, nor do they represent the views of Gartner or its affiliates. Gartner does not endorse any vendor, product or service depicted in this content nor makes any warranties, expressed or implied, with respect to this content, about its accuracy or completeness, including any warranties of merchantability or fitness for a particular purpose.Performance figures obtained through internal testing by Synology. Actual performance may vary depending on the testing environment, usage, and configuration. See performance charts for more information.Raw capacity. Usable storage capacity may vary depending on drives used and RAID configuration.DS1823xs+ supports up to 18 drives with two Synology DX517 Expansion Units, sold separately.Supports up to 75 IP cameras on a single Synology server with Synology Surveillance Station. Up to 10,000 cameras can be managed per deployment by adding together recording servers with Surveillance Station CMS. Surveillance Station includes 2 free licenses. Connecting more cameras and devices requires additional licenses. Learn more.SSD cache can be enabled by using 2.5" SATA SSD drives in standard drive bays or without occupying drive bays by installing Synology SNV3400 Series M.2 NVMe SSD drives through the built-in M.2 slots. SNV3400 Series M.2 NVMe SSD drives can also be used to create SSD storage pools. Drives are sold separately.Compared with its predecessor, the Synology DiskStation DS1621xs+.Tested with 8 TB Synology HAT5300 Series HDD.Sequential write throughput in MB/s when using a 10GbE SMB connection. Tested on an all-flash volume with Synology SAT5200 flash drives.C2 Storage for Hyper Backup and Hybrid Share requires purchase of an annual or monthly subscription. A free trial is available for each newly registered device.Certain advanced features require Virtual Machine Manager Pro. One Virtual DSM License is included. Additional Virtual DSM instances require the purchase of Virtual DSM Licenses.The warranty period starts from the date of purchase as stated on your purchase receipt. Visit https://www.synology.com/company/legal/warranty for more information.
Hardware Specs Software Specs
Hardware Specifications
CPU
CPU
 CPU Model AMD Ryzen V1780B
CPU Quantity 1
CPU Cores 4
CPU Threads 8
CPU Architecture 64-bit
CPU Frequency 3.35 (base) / 3.6 (turbo) GHz
Hardware Encryption Engine
Memory
Memory
 System Memory 8 GB DDR4 ECC SODIMM
Total Memory Slots 2
Maximum Memory Capacity 32 GB (16 GB x 2)
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.
  • 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.
Storage
Storage
 Drive Bays 8
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
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
External Ports
 RJ-45 1GbE LAN Port 2
RJ-45 10GbE LAN Port 1
Out-of-Band Management LAN Port 1
USB 3.2 Gen 1 Port 3
Expansion Port 2
Expansion Port Type eSATA
Notes This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
PCIe
PCIe
 PCIe Expansion 1 x Gen3 x8 slot (x4 link)
Appearance
Appearance
 Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm
Weight 6.2 kg
Others
Others
 System Fan 120 mm x 120 mm x 2 pcs
Fan Speed 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)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 250 watts
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 87.93 watts (Access)
28.37 watts (HDD Hibernation)
British Thermal Unit 300.23 BTU/hr (Access)
96.87 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
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
  • EAC
  • CCC
  • KC
  • BIS
Warranty
Warranty
 5 Years
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
Environment
 RoHS Compliant
Packaging Content
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
Optional Accessories
Optional Accessories
DSM Specifications
Storage Management
Storage Management
 Maximum Single Volume Size
  • 200 TB (32 GB memory required)
  • 108 TB
Maximum Internal Volume Number 256
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
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
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)
File System
File System
 Internal Drives
  • Btrfs
  • ext4
External Drives
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
File Services
File Services
 File Protocol
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Number of SMB Connections (FSCT-Based) 340
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
Account & Shared Folder
Account & Shared Folder
 Maximum Local User Accounts 2,048
Maximum Local Groups 512
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 12
Hybrid Share
Hybrid Share
 Maximum Hybrid Share Folders 15
Hyper Backup
Hyper Backup
 Folder and Package Backup
Entire System Backup
Notes Full-system backup requires DSM 7.2 or later.
High Availability
High Availability
 Synology High Availability
Log Center
Log Center
 Syslog Events per Second 3,000
Virtualization
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
General Specifications
 Supported Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, 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
Central Management System
Synology AI Console
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
Synology Chat
 Maximum Number of Users 400
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
Download Station
 Maximum Concurrent Download Tasks 80
SAN Manager
SAN Manager
 Maximum iSCSI Target Number 64
Maximum LUN 128
LUN Clone/Snapshot, Windows ODX
Synology MailPlus / MailPlus Server
Synology MailPlus / MailPlus Server
 Free Email Accounts 5 (Additional accounts require purchase of licenses)
Maximum Number of Users 710
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
Media Server
 DLNA Compliance
Synology Photos
Synology Photos
 Facial Recognition
Object Recognition
Snapshot Replication
Snapshot Replication
 Maximum Snapshots per Shared Folder 256
Maximum Snapshots per LUN 64
Maximum Snapshots per System 4,096
Maximum Replication Tasks for Shared Folders 32
Maximum Replication Tasks for LUNs 16
Maximum Replication Tasks per System 32
Surveillance Station
Surveillance Station
 Default 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
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
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
Synology Drive
 Maximum Number of Users 610
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)
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
Synology Office
 Maximum Number of Users 590
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
Virtual Machine Manager
 Recommended Virtual Machine Instances 8 (Learn more)
Recommended Virtual DSM Number (Licenses required) 8 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size.
VPN Server
VPN Server
 Maximum Connections 12
Notes: Model specifications are subject to change without prior notice. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.