Synology DS3617XSII 12-Bay NAS Enclosure

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. 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.

Flexible expansion options

The DS3617xsII is easily upgradable and adaptable to any application with Synology PCIe 3.0 add-in cards.

Bandwidth boost
Boost maximum network throughput with Synology 10/25GbE NICs.

SSD cache
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.

Smooth expansion
Quickly and easily scale up to 36 drives with two DX1215II expansion units.

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.

Hyper Backup

Back up files, iSCSI 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

Snapshot Replication enables flexible point-in-time snapshots of shared folders and virtual machines with an RPO as low as 5 minutes and recovery within seconds.

Storage for virtualization

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.

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.