RackStation RS1626xs+ RackStation RS1626xs+
RackStation RS1626xs+ High-performance scalable storage for enterprise workloads
Features Specs Accessories
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
Scalable 4-bay rackmount solution designed for high-performance business needsDownload Datasheet Fast and reliableOver 84,000 random write IOPS, built-in dual-port 10GbE, and up to 384 TB raw storage after expansionFlexible configurationAdd 12 extra drive bays, 10/25GbE ports, and SSD cache volumes whenever neededVersatile business application platformBack up endpoints, manage up to 75 IP cameras, or safely sync and share files across sites
Designed for reliabilityRedundant powerRedundant power supplies ensure maximum server uptime by preventing single-point power failures.Failover clusterMaximize service continuity by pairing two identical units into a Synology High Availability cluster, ensuring automated, minute-level failover in the event of hardware failure.Network redundancy and load balancingBuilt-in 2x 10GbE ports can be bonded with Link Aggregation to enable automatic network failover and load balancing.
Accommodates future expansionThe RS1626xs+ can be flexibly configured to meet evolving needs through faster networking, local SSD cache, or increased storage.Flexible networking optionsImprove I/O performance or add redundancy with optional 10GbE or 25GbE SFP+/SFP28 and 10GbE Ethernet NICs, or Fibre Channel HBAs.Built-in M.2 slotsTwo integrated M.2 slots support NVMe SSD caching to reduce latency and improve IOPS in HDD arrays, without occupying PCIe expansion slots or front drive bays.Storage expansionExpand to 16 drive bays with RX1225RP expansion unit.
Automated storage tieringSynology Tiering automatically moves infrequently accessed data to cost-efficient tiers, balancing performance and capacity to optimize your storage ROI. The RS1626xs+ can be configured as either hot or cold storage, providing the flexibility to complement your existing hardware and infrastructure.Learn more
Intuitive storage for on-site and remote teamsProvide secure and convenient cross-platform tile access, sharing, and synchronization across multiple locations.A secure private cloud solution for enterprise collaborationA private cloud suite for file sharingEmpower your entire organization with streamlined access, sharing, and syncing of data from any location. Establish granular control over file and folder access and sharing permissions. Maintain a comprehensive audit trail of file activities and track changes to file share settings with detailed records.Learn more Multi-platform supportAccess personal and shared data from mobile apps, desktop clients, web browsers, or another Synology system. Any changes you make are automatically synced to other devices as soon as they are connected.Efficient multi-site synchronizationCloud-powered multi-site syncingEmpower 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.Learn more NAS-to-NAS synchronizationAutomate site-to-site data synchronization for better team workflows. Options for one-way or two-way syncing keeps files and folders up-to-date across every data site.Learn more Sync to public cloud providersConnect seamlessly to public cloud services including Amazon S3, BackBlaze B2, Dropbox, Google Cloud Storage, Microsoft Azure, and OpenStack Swift. Multiple protocol support, client-side encryption, and customizable sync and bandwidth controls enable efficient storage management across various platforms.Learn more
Collaboration in a secure cloud, assisted by AIEnhance workplace collaboration with Synology Office Suite. 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. AI assistance enhances productivity across apps, with support for leading AI providers via API key integration.Learn more
Work smarter with AIAn all-in-one private cloud productivity AI solution with smart tools and privacy controls. Learn more MailPlusDocumentSlidesSpreadsheetSummarize emails and generate smart repliesWrite and polish draftsOne-click translation of the entire presentation and annotationsAnalyze data and get formula suggestionsComprehensive backup solutionsEndpoint, VM, and NAS/SAN protectionSecurely back up a wide range of systems including Windows, Mac, and Linux endpoints, VMware® and Hyper-V® virtual machines, and Synology servers. Expand protection to physical servers running Windows or Linux, as well as storage solutions such as Nutanix Files, NetApp ONTAP, and Windows Server with VSS (Volume Shadow Copy Service). Built-in deduplication technology optimizes storage efficiency, while multi-versioning capabilities provide flexible restoration options.Learn more Microsoft 365 and Google WorkspaceCentralize backups of Microsoft 365 and Google Workspace data to protect cloud data from accidents and simplify compliance with data retention policies. Schedulable backups, flexible file versioning, and block-level deduplication ensure flexibility and storage and bandwidth savings.Advanced data protection and recoveryEfficient and reliable Synology system backupBack up entire systems or all data, applications, and configurations to a wide range of storage destinations, including Synology C2 Storage. In case of data loss, quickly restore complete systems through bare-metal recovery or retrieve individual files as needed. Advanced features including automated scheduling, granular access controls, end-to-end encryption, data deduplication, and multi-version retention empower you to create the optimal backup plan for your data deployment.Learn more Tamper-proof protection with immutable snapshotsSafeguard 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 SurveillanceSynology Surveillance StationProtecting your business has never been easier, with centralized management, support for over 17,000 IP camera models, and remote monitoring and playback. Synology’s video management system provides all the tools you need for live monitoring, investigation, management, and backup.Learn more Open integration platform for surveillanceConnect third-party hardware, AI analytics, and specialized apps through open APIs. Our platform ensures seamless integration with your existing infrastructure, creating a flexible, future-ready security ecosystem.Learn more Centralized monitoring and managementMonitor and manage your Synology fleet from a central interface, on-prem or in the cloud.Central Management SystemManage Synology servers from a central console using group policies, task delegation, batch updates, and more.Learn moreActive InsightMonitor your global Synology fleet's performance, backup status, login activity, and more with the power of the cloud.Learn more

Performance backed by Synology drives

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

HDD
Enterprise Series 3.5" SATA
SSD
Enterprise Series 2.5" SATA Enterprise Series M.2 NVMe
Hard drives designed for SynologySee how Synology hard drives deliver reliability, consistent performance, and simplified system management through deep hardware-software integration.Watch video Synology has you coveredThe RS1626xs+ is backed by Synology's five-year limited warranty, including technical support and hardware replacement services to maximize your return on investment and ensure continued high-quality performance.Learn moreMore than half of Fortune 500 companies rely on Synology solutionsCarousel showcasing logos of partner companies
Find out why Hardware Overview
  • 1Power button
  • 2Power indicator
  • 3Alert indicator
  • 4Drive status indicators
  • 5Status indicator
  • 6Alarm silence button
  • 7Drive tray locks
  • 8Drive trays
  • 9Power ports
  • 10PSU fans
  • 11PCI Express expansion slot
  • 12PSU indicators
  • 13Mounting holes
  • 14USB 3.2 Gen 1 ports
  • 1510GbE RJ-45 ports
  • 16Reset button
  • 17Expansion port
  • 18Management port
  • First Product Image
  • Second Product Image
  • Third Product Image
  • Fourth Product Image
  • Fifth Product Image
  • Sixth Product Image
  • common.wcag_label_order_7 Product Image
Get in touchWhere to buyLearn moreAsk SynologyLearn moreNotes: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 are 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 calculated using 24 TB drives. Usable storage capacity may vary depending on drives used and RAID configuration. RS1626xs+ supports up to 16 drives with Synology RX1225RP Expansion Unit, sold separately.Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article.For the complete and most up-to-date list of compatible NICs, HBAs, and other accessories, please check our compatibility list.SSD cache can be enabled using Synology Enterprise Series 2.5" SATA SSDs in the drive bays, or via compatible M.2 SSDs in the internal slots to avoid occupying drive bays. SSDs are sold separately.This figure represents the recommended number of IP cameras operating at 1080p.C2 Storage for Hyper Backup and Hybrid Share requires purchase of an eligible annual or monthly subscription. A free trial is available for each newly registered device.Five MailPlus email accounts are included. Additional email accounts can be added with the purchase of Synology MailPlus License Packs. Learn moreSurveillance Station includes two free licenses. Connecting more cameras and devices requires additional licenses. Learn moreThe 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 Intel Xeon D-1726
CPU Quantity 1
CPU Cores 6
CPU Threads 12
CPU Architecture 64-bit
CPU Frequency 2.9 (base) / 3.5 (turbo) GHz
Hardware Encryption Engine
Memory
Memory
 System Memory 16 GB DDR4 ECC RDIMM
Total Memory Slots 4
Maximum Memory Capacity 64 GB (16 GB x 4)
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 4
Maximum Drive Bays with Expansion Unit 16 (RX1225RP x 1)
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.
  • Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article.
External Ports
External Ports
 RJ-45 10GbE LAN Port 2
Out-of-Band Management LAN Port 1
USB 3.2 Gen 1 Port 2
Expansion Port 1
Expansion Port Type Mini-SAS HD
PCIe
PCIe
 PCIe Expansion 1 x Gen4 x8 slot (x8 link)
Appearance
Appearance
 Form Factor (RU) 1U
Size (Height x Width x Depth) 44 mm x 481.9 mm x 668.5 mm
Weight 9.5 kg
Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKS-04)
Notes The rail kit is sold separately
Others
Others
 System Fan 40 mm x 40 mm x 4 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level* 52.6 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 250 watts
Redundant Power Supply
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 97.59 watts (Access)
56.19 watts (HDD Hibernation)
British Thermal Unit 332.78 BTU/hr (Access)
191.61 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 SSDs and in an idle state. Two G.R.A.S. type 40AE microphones were 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 5°C to 35°C (32°F to 95°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
  • UL
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
  • C13 to C14 power cord X 2
  • Front Cover X 1
Optional Accessories
Optional Accessories
Notes 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.
DSM Specifications
Storage Management
Storage Management
 Maximum Single Volume Size
  • 1 PB (64 GB memory required, for RAID 6 groups only)
  • 200 TB (32 GB memory required)
  • 108 TB
Maximum Internal Volume Number 32
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 (with Expansion Unit)
Global Hot Spare Supported RAID Type
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)
Notes
  • Volumes over 108 TB require 32 GB of memory or more.
  • Certain conditions are required to support a 1 PB volume. Please refer to this article for more information.
  • 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
File System
 Internal Drives
  • Btrfs
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) 1,900
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
 Hybrid Share Folder Number 15
Hyper Backup
Hyper Backup
 Data & Folder Backup
Entire System Backup
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
Citrix XenServer XenServer 8.4, 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 1,700 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 256
Maximum LUN 512
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 3,600
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, 1050 FPS
  • 3M: 60 channels, 600 FPS
  • 5M: 40 channels, 400 FPS
  • 4K: 28 channels, 280 FPS
Maximum IP Cameras and Total FPS (H.265)
  • 1080p: 75 channels, 2250 FPS
  • 3M: 75 channels, 1125 FPS
  • 5M: 70 channels, 700 FPS
  • 4K: 49 channels, 490 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 3,100
Maximum Number of Hosted Files 25,000,000 (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 3,000
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 12 (Learn more)
Recommended Virtual DSM Number (Licenses required) 12 (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.
Compatible Synology Accessories
RX1225RP
3.5" SATA HDD
Enterprise Series
  • HAT5320-4T
  • HAT5320-8T
  • HAT5300-12T
  • HAT5310-16T
  • HAT5310-20T
  • HAT5320-24T
2.5" SATA SSD
Enterprise Series
  • SAT5221-480G
  • SAT5221-960G
  • SAT5221-1920G
  • SAT5221-3840G
  • SAT5210-7000G
M.2 NVMe SSD
Enterprise Series
  • SNV3410-400G
  • SNV5420-400G
  • SNV5420-800G
  • SNV5420-1600G
  • E25G30-F2
  • E10G30-T2
  • E10G30-T1
  • E10G30-F2
  • E10G18-T1
D4ER02-16G
RKS-04
RX1225RP
3.5" SATA HDD
Enterprise Series
  • HAT5320-4T
  • HAT5320-8T
  • HAT5300-12T
  • HAT5310-16T
  • HAT5310-20T
  • HAT5320-24T
2.5" SATA SSD
Enterprise Series
  • SAT5221-480G
  • SAT5221-960G
  • SAT5221-1920G
  • SAT5221-3840G
  • SAT5210-7000G
M.2 NVMe SSD
Enterprise Series
  • SNV3410-400G
  • SNV5420-400G
  • SNV5420-800G
  • SNV5420-1600G
  • E25G30-F2
  • E10G30-T2
  • E10G30-T1
  • E10G30-F2
  • E10G18-T1
D4ER02-16G
RKS-04
Notes: For more information about drive firmware, EOL accessories, etc, see Synology Product Compatibility list.