Technical Specifications

Hardware

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

Memory

• 8GB DDR4 ECC UDIMM (8 GB x 1)
• Expandable up to 64GB (16 GB x 4)

Total memory slots

• 4

Drive bays

• 12
• Bundled with 72TB of storage capacity (includes 12 x 6TB Seagate Exos HDDs).

Maximum Drive Bays with expansion unit

• 36

Compatible drive type

• 3.5″ or 2.5″ SATA SSD/HDD
• 72TB Capacity (includes 12 x 6TB Seagate Exos HDD)

Maximum internal raw capacity

• 168 TB (14 TB drive x 12) (capacity may vary by RAID types)

Maximum raw capacity with expansion units

• 504 TB (168 TB + 14 TB drive x 24) (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

External ports

• 2 x USB 3.0 port
• 2 x Expansion port

Size (HxWxD)

• 88 x 430.5 x 692 mm (NAS)
• 88 x 482 x 724 mm (NAS with server ears)

Weight

• 14.5 kg

LAN

• 4 x 1GbE (RJ-45)

PCIe 3.0 slot

• 2 x Gen3 x8 slots (x8 link)
• High-performance network interface card support

Wake on LAN/WAN

• Yes

Scheduled power on/off

• Yes

System fan

• 4 (80 x 80 x 32 mm)

AC input power voltage

• 100V to 240V AC

Power frequency

• 50/60Hz, single phase

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

Maximum operating altitude

• 5,000 m (16,400 ft)

General DSM Specification

Networking protocol

• SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP)

File system

• Internal: Btrfs, ext4
• External: Btrfs, ext4, ext3, FAT, NTFS, HFS+, exFAT (exFAT Access is purchased separately in Package Centre)

Supported RAID type

• Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID F1

Storage management

• Maximum internal volumes: 1,024
• Maximum iSCSI targets: 64
• Maximum iSCSI LUNs: 512
• iSCSI LUN clone/snapshot support

SSD cache

• SSD read-write cache support

File sharing capability

• Maximum local user accounts: 16,000
• Maximum local groups: 512
• Maximum shared folders: 512
• Maximum concurrent SMB/NFS/AFP/FTP connections: 2,000

Privilege

• Windows Access Control List (ACL), application privilege

Directory service

• Windows AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration

Virtualisation

• VMware vSphere 6.5, Microsoft Hyper-V, Citrix, OpenStack

Security

• Firewall, encrypted shared folder, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let’s Encrypt support, HTTPS (Customisable cipher suite)

Supported client

• Windows 7 and 10, Mac OS X 10.11 onwards

Supported browser

• Chrome, Firefox, Internet Explorer 10 onwards, Safari 10 onwards; Safari (iOS 10 onwards), Chrome (Android 6.0 onwards)

Packages and Applications

File Station

• Virtual drive, remote folder, Windows ACL editor, compressing/extracting archived files, bandwidth control for specific users or groups, creating sharing links, transfer logs

FTP Server

• Bandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocol, boot over the network with TFTP and PXE support, transfer logs

Universal Search

• Offer global search into applications and files

Hyper Backup

• Support local backup, network backup, and backup data to public clouds

Active Backup for Server

• Centralise data backup for Windows and Linux servers without client installation

Backup tools

• DSM configuration backup, macOS Time Machine support, Cloud Station Backup
• Shared folder sync – maximum tasks: 16

Cloud Station Suite

• Sync data between multiple platforms by installing the client utilities on Windows, Mac, Linux, Android and iOS devices, while retaining up to 32 historical versions of files
• Maximum concurrent file transfers: 2,000

Cloud Sync

• One or two-way synchronisation with public cloud storage providers including Amazon Drive, Amazon S3-compatible storage, Baidu cloud, Box, dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, WebDAV servers, Yandex Disk

Surveillance Station

• Maximum IP cameras: 75 (total of 2,250 FPS at 720p, H.264)
• Includes two free camera licences; additional cameras require the purchasing of additional licences

Virtual Machine Manager

• Deploy and run various virtual machines on Synology NAS, including Windows, Linux, or Virtual DSM

High Availability Manager

• Reduce service downtime by setting up two identical NAS into one high-availability cluster

Snapshot Replication

• Maximum replications: 64
• Maximum shared folder snapshots: 1,024
• Maximum system snapshots: 65,536

Active Directory Server

• A flexible and cost-effective domain controller solution

CMS

• Provide a single interface to manage and monitor multiple Synology NAS

VPN Server

• Maximum connections: 30, supported VPN protocol: PPTP, OpenVPN, L2TP/IPSec

MailPlus Server

• Secure, reliable, and private mail solution with high-availability, load balancing, security and filtering design
• Includes 5 free email account licences; additional accounts require the purchasing of additional licences

MailPlus

• Intuitive webmail interface for MailPlus Server, customisable mail labels, filters, and user interface

Collaboration tools

• Chat maximum users: 4,000
• Office maximum users: 1,600, maximum simultaneous editing users: 100
• Calendar: support CalDAV and access via mobile devices

Note Station

• Rich-text note organisation and versioning, encryption, sharing, media embedding and attachments

Storage Analyser

• Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, largest/most/least frequently modified files

Security Advisor

• Malware detection/removal, user account/password, network, system-related security scan

Antivirus Essential

• Full system scan, scheduled scan, white list customisation, virus definition auto update

Download Station

• Supported download protocols: BT, HTTP, FTP, NZB, eMule, Thunder, FlashGet, QQDL
• Maximum concurrent download tasks: 80

Web Station

• Virtual host (up to 30 websites), PHP/MariaDB, 3rd-party applications support

Other packages

• Video Station, Photo Station, Audio Station, DNS Server, RADIUS Server, iTunes Server, Log Centre
• Additional 3rd-party packages are available in Package Centre

Environment and Packaging

Environment safety

• RoHS compliant

Package content

• 1 x RS3618xs Enclosure
• 12 x Seagate Exos Hard Drives
• 1 x Quick Installation Guide
• 1 x Accessory pack
• 1 x AC power cord