Maximum Single Volume Size*
108 TB

Maximum Internal Volume Number
64

M.2 SSD Storage Pool Support*

SSD Read / Write Cache

SSD TRIM

Supported RAID Type

• Synology Hybrid RAID
• 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

• Synology Hybrid RAID
• RAID 1
• RAID 5
• RAID 6
• RAID 10

Volume Expansion by Adding a HDD

• Synology Hybrid RAID
• JBOD
• RAID 5

Global Hot Spare Supported RAID Type

• Synology Hybrid RAID
• RAID 1
• RAID 5

Notes

• Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
• Creating M.2 storage pools requires the use of Synology-verified SSDs, which are rigorously tested under extreme temperature conditions. Thermal parameters for SSDs and NAS units are fine-tuned to ensure optimal management of thermal conditions under I/O-intensive environments. ( )
• Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.

File Protocol
SMB/AFP/NFS/FTP/WebDAV

Maximum Concurrent SMB/AFP/FTP Connections
500

Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion)
1,500

Windows Access Control List (ACL) Integration

NFS Kerberos Authentication

Notes

• Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
• The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.

Maximum Local User Accounts
2,048

Maximum Local Groups
256

Maximum Shared Folder
512

Maximum Shared Folder Sync Tasks
8

Maximum Hybrid Share Folders
10

Synology High Availability

Syslog Events per Second
800

VMware vSphere with VAAI

Windows Server 2016

Windows Server 2019

Citrix Ready

OpenStack

Networking Protocols
SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV

Supported Browsers

• Google Chrome
• Firefox
• Microsoft Edge
• Safari

Supported Language
English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

Notes
For an updated list of supported browser versions, check the .