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Note:

• The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
• These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
• These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Hardware Specifications
CPU
CPU Model: Intel Xeon D-1521
CPU Architecture: 64-bit
CPU Frequency: Quad Core 2.4 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI): Yes

Memory
System Memory: 8 GB DDR4 ECC UDIMM
Memory Module Pre-installed: 8 GB x 1
Total Memory Slots: 4
Memory Expandable up to: 64 GB (16 GB X 4)

Storage
Drive Bay(s): 12
Maximum Drive Bays with Expansion Unit: 36
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)
• 108 TB

Hot Swappable Drive: Yes

Notes: "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.
External Ports
USB 3.0 Port: 2
Expansion Port: 2
File System
Internal Drives:

• Btrfs
• EXT4

External Drives:

• Btrfs
• EXT4
• EXT3
• FAT
• NTFS
• HFS+
• exFAT*

Appearance
Size (Height x Width x Depth): 88 mm x 430.5 mm x 692 mm

Weight: 14.5 kg

Others
RJ-45 1GbE LAN Port: 4 (with Link Aggregation / Failover support)
Wake on LAN/WAN: Yes

PCIe Slot for Network Card (See more) : 2 x Gen3 x8 slots (x8 link)
System Fan: 80 mm x 80 mm x 4 pcs
Fan Speed Mode:

• Full-Speed Mode
• Cool Mode
• Quiet Mode

Easy Replacement System Fan: Yes

Wireless Support (dongle): Yes

Power Recovery: Yes

Noise Level*: 50.2 dB(A)

Scheduled Power On/Off: Yes

Power Supply Unit / Adapter: 2 X 500W

AC Input Power Voltage: 100V to 240V AC
Power Frequency: 50/60 Hz, Single Phase
Power Consumption*: 116.42 W (Access)
65.49 W (HDD Hibernation)

British Thermal Unit: 397.24 BTU/hr (Access)
223.46 BTU/hr (HDD Hibernation)

Redundant Power Supply (for xs+ and RP model): Yes

Environment Temperature
Operating Temperature: 5°C to 35°C (40°F to 95°F)
Storage Temperature: -20°C to 60°C (-5°F to 140°F)
Relative Humidity: 5% to 95% RH
Certification:

• FCC Class A
• CE Class A
• BSMI Class A

Warranty: 5 Years
Notes:

• 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%

DSM Specifications

Storage Management
Maximum Internal Volume Number: 1024
Maximum iSCSI Target Number: 64
Maximum iSCSI LUN: 512
iSCSI LUN Clone/Snapshot, Windows ODX:

RAID Group:

Supported RAID Type:

• 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 1
• RAID 5
• RAID 6

Volume Expansion by Adding a HDD:

• RAID 5
• RAID 6
• JBOD

Global Hot Spare Supported RAID Type:

• RAID 1
• RAID 5
• RAID 6
• RAID 10

SSD Support
SSD Read/Write Cache (White Paper) : Yes

SSD TRIM: Yes

File Sharing Capacity
Maximum User Accounts: 16000
Maximum Groups: 512
Maximum Shared Folder: 512
Maximum Shared Folder Sync Tasks: 16
Maximum Concurrent CIFS/AFP/FTP Connections: 2048
Windows Access Control List (ACL) Integration: Yes

NFS Kerberos Authentication: Yes

High Availability Manager: Yes

Log Center: Yes

Syslog Events per Second: 3000
Virtualization
VMware vSphere 6 with VAAI: Yes

Windows Server 2012: Yes

Windows Server 2012 R2: Yes

Citrix Ready: Yes

Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial): Yes

Central Management System: Yes

Cloud Station Server: Yes

Maximum Concurrent File Transfers: 2000
Maximum Concurrent File Transfers(with RAM expansion): 10000
Docker DSM:

Maximum Docker DSM Number (Licenses required): 35 (including 1 Free License) (Learn more)
Document Viewer: Yes

Download Station: Yes

Maximum Concurrent Download Tasks: 80
exFAT Access (optional): Yes

HiDrive Backup: Yes

MailPlus / MailPlus Server: Yes

Free Email Accounts: 5 (Licenses required for additional accounts)
Recommended MailPlus Client Number: Up to 300 (Btrfs) / 400 (EXT4)
Maximum Server Performance: 2,248,000 (Btrfs) / 2,184,000 (EXT4) emails per day, approx. 68.8 GB (Btrfs) / 66.7 GB (EXT4)
Notes:

• The CPU and RAM usages were both under 80% when testing recommended client numbers.
• For tested models with expandable memory, the maximum amount of RAM was installed.
• Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
• The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
• Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).

Media Server: Yes

DLNA Compliance: Yes

PDF Viewer: Yes

PetaSpace: Yes

Snapshot Replication: Yes

Maximum Snapshots per Shared Folder: 1024
Maximum Snapshots of all Shared Folder: 65536
SpreadSheet:

Maximum Simultaneous Editing Users: 220
Surveillance Station:

Maximum IP cam (Licenses required): 75 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)*:
2250 FPS @ 720p (1280x720)
900 FPS @ 1080p (1920×1080)
500 FPS @ 3M (2048x1536)
300 FPS @ 5M (2591x1944)

Total FPS (MJPEG)*:
750 FPS @ 720p (1280x720)
375 FPS @ 1080p (1920×1080)
250 FPS @ 3M (2048x1536)
180 FPS @ 5M (2591x1944)

Notes: 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.
Video Station: Yes

Video Transcoding: Group 1 - Type 2 (See more)
Maximum Transcoding Channel Number: 1 channel, 30 FPS @ 720p (1280x720), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Virtual DSM Manager:

VPN Server: Yes

Maximum Connections: 30
Environment & Packaging
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:

• Camera License Pack
• 8GB DDR4 ECC UDIMM
• 16GB DDR4 ECC UDIMM
• Expansion Unit: RX1217/RX1217RP X 2
• VS360HD
• Synology RKS1317 - Rail Kit Sliding
• Synology Ethernet Adapter E10G15-F1
• Synology Ethernet Adapter E10G17-F2