Synology DiskStation DS3617xsII
A performance powerhouse in desktop form factor
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Synology DiskStation DS3617xsII is a generalpurpose 12-bay NAS system designed to excel in data-heavy environments as a file server, surveillance server, or as virtual machine storage. Powered by Synology DiskStation Manager (DSM), DS3617xsII comes with powerful built-in business solutions and optional expandability for SATA SSD cache, 10/25 GbE networking, and up to 36 drive bays. The unit is backed by Synology's 5-year limited warranty.
- Solid Performance
Delivers up to 2,359/2,178 MB/s sequential read/write performance
- Easy Scalability
Add 24 additional drive bays for a total of 36 with up to two DX1215(II) expansion units
- Performance Enhancements
Add 10/25GbE networking3 or fast SATA SSD cache
- Synology High Availability
Maximizes service uptime by combining two devices into a high-availability cluster with minute-level failover
- Extended Support
Backed by Synology's 5-year limited warranty
Enterprise server for data-intensive applications
The 12-bay Synology DS3617xsII is a scalable desktop storage system capable of delivering up to 2,359 sequential read and 2,178 MB/s sequential write throughput.1 Enterprise-class performance, ECC memory, and the Btrfs file system make the DS3617xsII the ideal choice for intensive workloads that demand both large storage capacity and high performance.
Intel Xeon quad-core
16 GB DDR4 ECC RAM, up to 48 GB
Optional 10/25GbE connectivity
Up to 36 drive bays with two DX1215II expansion units
Flexible expansion options
The DS3617xsII is easily upgradable and adaptable to any application with Synology PCIe 3.0 add-in cards.
Boost maximum network throughput with Synology 10/25GbE NICs.
Improve read/write performance by up to 16 times with a Synology M.2 adapter coupled with SATA M.2 SSD or by installing one or more 2.5” SAT5200 SSDs.
Quickly and easily scale up to 36 drives with two DX1215II expansion units.
Out-of-the-box data protection
Protect your data with professional backup software for your Synology NAS, other devices, and applications.
Consolidate backups to your NAS
Active Backup Suite
Securely back up Windows clients and servers, Microsoft 365 and Google Workspace accounts, file servers, and VMware and Hyper-V virtual machines with the Active Backup Suite. Leverage built-in deduplication technology to reduce backup sizes and multi-versioning to allow flexible restoration.
Implement a 3-2-1 backup strategy
Combine local and remote backup strategies to achieve fully redundant protection of your IT infrastructure using Synology and third-party solutions.
Back up your NAS to other devices
Back up files, LUNs, installed applications, and system configurations to destinations including Synology C2 Storage, public cloud platforms, USB devices, file servers, local folders, or other Synology NAS. Set and forget backup tasks with regular schedules, enhance security with fine-grained user permissions and encryption, keep backup sizes small with built-in deduplication, and restore data flexibly with multi-versioning.
Snapshot Replication enables configurable point-in-time snapshots of shared folders and virtual machines with an RPO as low as 5 minutes and recovery within seconds.
Certified virtual machine storage
Synology DiskStation Manager (DSM) streamlines provisioning for and management of virtual machines with full certification for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, and OpenStack virtualization environments.
Synology Storage Console for VMware or Windows platforms lets you manage storage directly from your hypervisor. VMware VAAI integration and Windows ODX help offload storage operations and speed up data transfer, and a Kubernetes CSI driver lets you provision and manage volumes directly from the K8s CLI.
All-in-one surveillance solution
With Synology Surveillance Station, the DS3617xsII becomes a powerful Network Video Recorder solution. Connect up to 75 IP cameras5 and take advantage of sophisticated video analytics, including motion detection, no-idle zone, foreign object detection, and anomaly detection, to cover the most advanced surveillance scenarios.
Secure and private
AES-256 encryption adds additional security to the locally-stored footage.
Access from anywhere, anytime
Access recordings and live streams whenever you want using a web browser, desktop client, or the DS cam mobile app.
Email, SMS, or push notifications alert you when incidents occur or predefined conditions are met.
Powered by Synology DiskStation Manager
The web-based DiskStation Manager (DSM) operating system supports a host of native productivity and management solutions.
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Secure data with comprehensive built-in security tools to protect your devices against evolving threats.
Public Cloud Integration
Back up and synchronize data easily between public cloud accounts and your NAS.
At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.
Synology Replacement Service (SRS)
SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity.
- Status indicator
- Alert indicator
- Power button
- LAN indicator
- Drive status indicator
- Drive tray
- Drive tray lock
- Power port
- System fan
- PCIe expansion slot
- USB 3.2 Ports
- Expansion port
- Console port
- Reset button
- 1GbE RJ-45 port
|DS3617xsII Hardware Specifications:|
|CPU||Intel Xeon D-1527 quad-core 2.2GHz, Turbo Boost up to 2.7GHz|
|Hardware encryption engine||Yes (AES-NI)|
|Memory||16 GB DDR4 ECC SODIMM (expandable up to 48 GB)|
|Compatible drive type||12 x 3.5" or 2.5" SATA HDD/SSD (drives not included)|
|Hot swappable drive||Yes|
|Size (Height x Width x Depth)||270 x 300 x 340 mm|
|LAN port||4 x 1GbE RJ-45|
|Wake on LAN/WAN||Yes|
|PCIe 3.0 slot||
|Scheduled power on/of||Yes|
|System fans||2 x (120 x 120 x 25 mm)|
|AC input power voltage||100 V to 240 V AC|
|Power Frequency||50/60 Hz, single phase|
|Operating Temperature||5°C to 40°C (40°F to 104°F)|
|Storage Temperature||-20°C to 60°C (-5°F to 140°F)|
|Relative Humidity||5% to 95% RH|
|Maximum operating altitude||5,000 m (16,400 ft)|
|General DSM specification|
|Networking protocol||SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Fibre Channel,3 Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN™, L2TP)|
|Supported RAID type||Synology RAID F1, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10|
|File sharing capability||
|Privilege||Windows Access Control List (ACL), application privileges|
|Directory service||Connects with Windows AD/LDAP servers enabling domain users to login via SMB/NFS/AFP/FTP/File Station using their existing credentials|
|Virtualization||VMware vSphere, Microsoft Hyper-V, Citrix, OpenStack|
|Security||Firewall, shared folder encryption, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, and HTTPS (customizable cipher suite)|
|Supported clients||Windows 7 onwards, macOS 10.12 onwards|
|Supported browser||Google Chrome, Firefox, Microsoft Edge, Safari 13 and later, and Safari (iOS 13.0 and later) on iPad, Chrome (Android 11.0 and later) on tablets|
|File Server & Synchronization|
|Cloud Sync||Offers one or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, Backblaze B2, Baidu Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, Tencent COS, WebDAV servers and Yandex Disk|
|Drive||Synchronizes files across Windows, macOS, Linux, Android and iOS. The built-in cross-platform portal allows access to data anytime and anywhere
|File Station||Provides virtual drives, remote folders, Windows ACL editor, compression/extraction of archived files, bandwidth control for specific users/groups, creation of sharing links, and transfer logs|
|FTP Server||Supports bandwidth control for TCP connections, custom FTP passive port ranges, anonymous FTP, FTP over TLS/SSL and SFTP protocols, network booting with TFTP and PXE support, and transfer logs|
|Presto File Server||Enables high-speed data transfer over WAN through the exclusive SITA technology between Synology NAS and desktop platforms|
|Universal Search||Enables global search of applications and files.|
|SAN Storage & Virtualization|
|Virtual Machine Manager||Deploys and runs virtual machines on the Synology NAS, including Windows, Linux, and Virtual DSM.|
|Data Protection & Backup Solution|
|Active Backup for Business||An all-in-one backup solution designed for heterogeneous business IT environments. It enables IT admins to remotely manage and protect PCs, servers, and VMs from one centralized console|
|Active Backup for Google Workspace||Supports backup and restoration of Google Workspace My Drive, Team Drive, Gmail, Contacts, and Calendar|
|Active Backup for Microsoft 365||Supports backup and restoration of Microsoft 365 OneDrive for Business, Outlook, Contacts, and Calendar|
|Hyper Backup||Supports local backup, network backup, and data backup to public clouds.|
|Synology High Availability||Reduces service downtime by combining two identical NAS into a high-availability cluster|
|Productivity & Collaboration|
|Collaboration tools||Collaborate with instant messaging service Synology Chat, online documents editor Synology Office, and scheduling assistant Synology Calendar
|Note Station||A note taking platform that supports rich text, note organization and versioning, encryption, sharing, media embedding, and attachments|
|Synology MailPlus Server||A secure, reliable, and private mail solution featuring high-availability, load balancing, security, and filtering options|
|Synology MailPlus||An intuitive webmail interface for Synology MailPlus Server with configurable mail labels, filters, and user interface|
|Surveillance Station||Maximum IP cameras: 75, for a total of 2,250 FPS at 720p (H.264).|
|Central Management System||Provides a single interface to manage and monitor multiple Synology NAS models|
|Synology Directory Server||Provide a flexible and cost-effective domain controller solution|
|Mail Station||A webmail interface for Mail Server to receive emails from multiple POP3 mailboxes and SMTP servers.|
|Web Station||Enables hosting for up to 30 websites with support for PHP/MariaDB and 3rd-party applications.|
|Other packages||DNS Server, RADIUS Server, and Log Center|
|Storage Analyzer||Displays volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, large files, most recently modified files, and least recently accessed files.|
|Antivirus Essential||Provides full system scans, scheduled scans, white list customization, and auto-update of virus definitions.|
|iOS/Android applications||Synology Drive, Synology MailPlus, Synology Secure SignIn, Synology Chat, Synology LiveCam, Synology Photos, Synology Active Insight, DS audio, DS photo, DS video, DS cam, DS file, DS finder, and DS note|
|Other packages||Additional 3rd-party packages are available in the Package Center|
|Certifications and Packaging|
|Environment safety||RoHS compliant|
Download the Synology DiskStation DS3617xsII Datasheet (PDF).
- Pricing and product availability subject to change without notice.
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