Synology RS3618XS NAS with Seagate EXOS HDD Bundles

Key Features:

-Bundled with Seagate EXOS Enterprise grade HDDs (12TB to 144TB capacity)

-Reliable centralised storage solution for large scale businesses.

-Quad-core CPU with AES-NI and 8GB DDR4-2133 ECC UDIMM (expandable up to 64GB).

-Ultra-high performance of over 3,900 MB/s sequential reading and 143,500 iSCSI random read IOPS.

-Capable of installing 10GbE/40GbE NICs (sold separately).

-Scalable up to thirty-six (36) drives with Synology RX1217 or RX1217RP expansion units (sold separately).

-Complete virtualisation solution with Synology Virtual Machine Manager.

-Dynamic iSCSI/NFS storage for VMware, Windows Hyper-V, Citrix, and OpenStack.

-Back by Synology a 5 year limited arranty and Synology Replacement service (SRS)







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Your configuration £3,362.79 (£4,035.34 inc VAT)


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The Synology RS3618xs RackStation NAS is a reliable, superior-performance network-attached storage solution for large-scale enterprises with demanding business applications. RS3618xs simplifies data management, optimises virtualisation environments, and rapidly expands storage capacity with minimal time investment in setup and maintenance.

Includes: Seagate Exos 7E8 hard drives for data centre infrastructures requiring a highly reliable enterprise hard drive. Exos 7E8 provides cost-effective, reliable access to unstructured data. Built on field-proven 9th generation conventional magnetic recording (CMR) technology, the Exos 7E8 drive helps to catalyse the datasphere, enabling data centre architects and IT professionals to deliver trusted performance, rock-solid reliability, ironclad security and low TCO for demanding 24×7 operations.

The Synology RS3618xs is a 2U 12-bay rackmount network-attached storage solution equipped with a quad-core processor and 8GB DDR4 memory (expandable up to 64GB), meeting the needs for large-scale businesses. With 10GbE Link Aggregation enabled, RS3618xs delivers great performance at over 3,900 MB/s sequential reading throughput and 143,500 iSCSI random IOPS under a RAID 5 configuration. Encrypted data throughput can reach over 2,300 MB/s in reading and 1,177 MB/s in writing. RS3618xs provides great flexibility to easily scale up to thirty-six (36) drives when connected to two (2) Synology RX1217 or RX1217RP expansion units (sold separately). Storage capacity can be expanded according to your business needs with minimal effort


Technical Specifications


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


  • 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 Seagate EXOS Enterprise HDD (12 to144TB)

Maximum Drive Bays with expansion unit

  • 36

Compatible drive type

  • 3.5" or 2.5" SATA SSD/HDD
  • Capacity (12 to 144TB 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)


  • 14.5 kg


  • 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


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


  • Windows Access Control List (ACL), application privilege

Directory service

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


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


  • 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


  • 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


  • 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


5 year warranty