Centralize data right on your desk Meet the 12-bay desktop NAS that allows instant deployment with scalability up to 36 drives, delivering outstanding 2,358MB/s sequential throughput reading. DS3617xs is certified for VMware, Citrix, Hyper-V, and OpenStack, ready to bring superior agility and efficiency to businesses.
High-performance NAS server for RAM-intensive applications Equipped with an Intel Xeon-D quad-core processor, DS3617xs delivers stunning performance with over 2,358 MB/s reading under a RAID 5 configuration with optional 10GbE and Link Aggregation enabled. Initially equipped with 16GB DDR4 ECC RAM (upgradable to 48GB), it ensures data accuracy when handling high-value data and mission-critical tasks.
Scale on demand DS3617xs can be connected to one or two dedicated DX1215 expansion units, allowing you to expand storage capacity to up to 36 drives without disrupting service. The high-bandwidth cable ensures instant and lossless connections between the main server and the expansion units.
10GbE upgradability In addition to the four built-in Gigabit ports, DS3617xs comes with a PCIe 3.0 x8 slot to support an optional 10GbE Network Interface Card (NIC), maximizing bandwidth and meeting high performance requirements for data-intensive applications.
Reliable redundancy mechanisms DS3617xs comes with comprehensive redundancy mechanisms to ensure business continuity. Built-in four LAN ports with failover provides reliable redundancy in the event of unexpected network failure. The high reliability system design, including fanless CPU heat-sink and passive cooling technologies, prevents a single point of failure.
5 year warranty Synology DS3617xs is backed with Synology's 5-year limited warranty. With technical support and hardware replacement service, the 5-year warranty maximizes your enterprises' return on investment.
Synology Replacement Service (SRS) The Synology Replacement Service (SRS)* provides free shipment of replacement units as early as the next business day. SRS can expedite the process of replacing defective products and minimize service downtime. * Available in selected countries.
Intel Xeon D-1527
Quad Core 2.2 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)
16 GB DDR4 ECC SO-DIMM
Memory Module Pre-installed
8 GB x 2
Total Memory Slots
Memory Expandable up to
48 GB (16 GB + 16 GB x 2)
Maximum Drive Bays with Expansion Unit
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity
120 TB (10 TB HDD x 12) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units
360 TB (10 TB HDD x 36) (Capacity may vary by RAID types)
Maximum Single Volume Size
200 TB (32GB RAM required, for RAID 5 or RAID 6 groups only)
Hot Swappable Drive
"Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
USB 3.0 Port
exFAT Access is purchased separately in Package Center.
Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Maximum Internal Volume Number
Maximum iSCSI Target Number
Maximum iSCSI LUN
iSCSI LUN Clone/Snapshot, Windows ODX
Supported RAID Type
Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDs
Volume Expansion by Adding a HDD
Global Hot Spare Supported RAID Type
SSD Read/Write Cache (White Paper)
File Sharing Capacity
Maximum Local User Accounts
Maximum Local Groups
Maximum Shared Folder
Maximum Shared Folder Sync Tasks
Maximum Concurrent CIFS/AFP/FTP Connections
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
High Availability Manager
Syslog Events per Second
VMware vSphere 6 with VAAI
Windows Server 2012
Windows Server 2012 R2
Antivirus by McAfee (Trial)
Central Management System
The number of concurrent HTTP connections for Chat was configured to the maximum.
CPU and RAM usage were both under 80% when testing the recommended number of clients.
For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Maximum Concurrent File Transfers
Maximum Concurrent File Transfers (with RAM expansion)
Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.