Hardware Specs
Controller
Number of Controller Module
2
CPU
CPU Model
Intel Xeon D-1521
CPU Quantity
1 (per controller)
CPU Architecture
64-bit
CPU Frequency
4-core 2.4 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)
Yes
Memory
System Memory
8 GB DDR4 ECC UDIMM (per controller)
Memory Module Pre-installed
8 GB (8 GB x 1) (per controller)
Total Memory Slots
4 (per controller)
Maximum Memory Capacity
64 GB (16 GB x 4) (per controller)
Notes
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.
Synology reserves the right to replace memory modules with the same or higher frequency based on suppliers product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Storage
Drive Bays
12
Maximum Drive Bays with Expansion Unit
36 (RXD1219sas x 2)
Compatible Drive Type
3.5" SAS HDD
2.5" SAS HDD
2.5" SAS SSD
Maximum Internal Raw Capacity
192 TB (16 TB drive x 12) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units
576 TB (192 TB + 16 TB drive x 24) (Capacity may vary by RAID types)
Maximum Single Volume Size
200 TB (32 GB RAM required, for RAID 5 or RAID 6 groups only)
108 TB
Hot Swappable Drive
Yes
Notes
"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit.
Each internal volume (may consist of multiple drives) is expandble up to 108TB (with memory less than 32GB) or 200TB (with memory equal to or greater than 32GB).
External Ports
RJ-45 1GbE LAN Port
2 (with Link Aggregation / Failover support) (per controller)
RJ-45 10GbE LAN Port
1 (per controller)
Expansion Port
1
PCIe
PCIe Expansion
1 x Gen3 x8 slot (x8 link) (per controller)
File System
Internal Drives
Btrfs
EXT4
Appearance
Form Factor (RU)
2U
Rack Installation Support
4-post 19" rack (Synology Rail Kit - RKS1317)
Notes
The rail kit is sold separately
Others
System Fan
60 mm x 60 mm x 2 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Easy Replacement System Fan
Yes
Power Recovery
Yes
Noise Level
51.3 dB(A)
Power Supply Unit / Adapter
500 W
Redundant Power Supply
Yes
AC Input Power Voltage
100 V to 240 V AC
Power Frequency
50/60 Hz, Single Phase
Power Consumption
417.48 W (Access)
274.38 W (HDD Hibernation)
British Thermal Unit
1425.45 BTU/hr (Access)
936.85 BTU/hr (HDD Hibernation)
Notes
Noise Level Testing Environment: Fully loaded with Seagate ST8000NM0075 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology server at the front and rear. Background noise: 16.49-17.51 dB(A), Temperature: 24.25-25.75^oC, Humidity: 58.2-61.8%.
Power consumption is measured when it is fully loaded with Seagate ST3600057SS hard drive(s).
Temperature
Operating Temperature
0^oC to 35^oC (32^oF to 95^oF)
Storage Temperature
-20^oC to 60^oC (-5^oF to 140^oF)
Relative Humidity
5% to 95% RH
Certification
EAC
VCCI
CCC
RCM
FCC
CE
BSMI
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 2
Quick Installation Guide X 1
Optional Accessories
DDR4 ECC UDIMM: D4EC-2666-8G/D4EC-2666-16G
Expansion Units: RXD1219sas
10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2
Rail Kit Sliding: RKS1317
VisualStation: VS960HD/VS360HD
Surveillance Device License Pack
Notes
All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Internal Volume Number
64
Maximum iSCSI Target Number
256
Maximum iSCSI LUN
512
iSCSI LUN Clone/Snapshot, Windows ODX
Yes
SSD Read / Write Cache
Yes
SSD TRIM
Yes
RAID Group
Yes
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
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
File Services
File Protocol
CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections
1,200
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)
6,000
Windows Access Control List (ACL) Integration
Yes
NFS Kerberos Authentication
Yes
Account and Shared Folder
Maximum Local User Accounts
16,000
Maximum Local Groups
512
Maximum Shared Folder
512
Maximum Shared Folder Sync Tasks
32
High Availability
Synology High Availability
Yes