Synology RS819 RackStation 4-Bay Rackmount Network Storage Enclosure (2GB RAM)

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Synology RS819 RackStation 4-Bay Rackmount NAS Enclosure (2GB RAM)

The Synology RS819 RackStation 4-Bay Network Attached NAS Storage Enclosure is a compact and scalable rackmount NAS in 1U form factor. Powered by Synology DiskStation Manager with snapshot technology support, the RS819 brings business workgroups simple yet comprehensive solutions to data management, sharing, synchronisation and backup.

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Synology RS819 RackStation 4-Bay Rackmount NAS Enclosure (2GB RAM)

Synology RS819 RackStation 4-Bay Rackmount Network Storage Enclosure (2GB RAM)

The Synology RS819 RackStation 4-Bay Network Attached NAS Storage Enclosure is a compact and scalable rackmount NAS in 1U form factor. Powered by Synology DiskStation Manager with snapshot technology support, the RS819 brings business workgroups simple yet comprehensive solutions to data management, sharing, synchronisation and backup.


Key Features

  • Unpopulated four (4) bay network attached NAS storage device.
  • Rackmount NAS designed for business workgroups.
  • 64-bit quad-core 1.4GHz processor.
  • Compact chassis design, less than 12-inches deep.
  • Encryption performance at over 224 MB/s reading, 152 MB/s writing.
  • Dual 1GbE LAN with failover and Link Aggregation support.
  • Advanced Btrfs file system, offering 4,096 system-wide snapshots and 256 snapshots per shared folder.
  • Scale up to eight (8) drives with the Synology RX418 (sold separately).

Compact 1U rackmount NAS with excellent performance

The Synology RS819 RackStation 4-Bay Network Attached NAS Storage Enclosure is 1U 4-bay rackmount network-attached storage solution for business workgroups. Its compact 12-inch depth chassis design supports 2-post racks and brings high flexibility to server deployment. Equipped with a 64-bit quad-core processor, 2 GB DDR4 memory and two Gigabit LAN ports, the RS819 delivers sequential reading and writing throughput at over 225 MB/s and 169 MB/s respectively. Excellent encrypted data transmission at over 224 MB/s reading and 152 MB/s writing make the RS819 an efficient shared storage for multiple users, while keeping valuable data secure and away from potential threats. The RS819 also provides storage scalability up to eight (8) drives when connected to one Synology expansion unit RX418 (sold separately). Storage capacity can be expanded with minimal effort.


Cross-platform file sharing and data synchronisation

The Synology RS819 RackStation 4-Bay Network Attached NAS Storage Enclosure supports comprehensive network protocols, ensuring a seamless file sharing experience across Windows, Mac, and Linux platforms. Windows AD and LDAP integration allows the RS819 to fit quickly and effortlessly into any existing network environment, without the need to create identical user accounts. Cloud Sync keeps your Dropbox, Google Drive, Microsoft OneDrive, Baidu, and Box storage in sync with your RackStation at the workplace. Synology Drive allows you to sync files across Windows, macOS, Linux, and mobile devices, effortlessly keeping everything up-to-date. The RS819 combines seamless file sharing capability with a high level of security, including HTTPS support, a built-in firewall, and multiple IP and account intrusion auto-blocking mechanisms.

Btrfs: next generation storage efficiency

The RS819 introduces the Btrfs file system, bringing the most advanced storage technologies to meet the management needs of modern businesses:

  • Advanced snapshot technology with customisable backup schedule allows shared folders to be backed up in a minimum 5-minute interval, without consuming heavy system resources.
  • File and folder level data restoration brings huge conveniences and saves time for users who wish to restore only a specific file or folder.
  • Flexible Shared Folder and User Quota System provide comprehensive quota control on all user accounts and shared folders.
  • Synology Drive supports file versioning, requiring as little as half the storage when compared with ext4 file systems.
  • Advanced iSCSI LUNs based on a Btrfs volume offer lightning-fast snapshot creation, recovery, and cloning.

Easy backup solutions

Synology Hyper Backup provides multi-version backup with block-level incremental backup and cross-version deduplication. It optimises storage utilisation and allows data to be backed up to multiple destinations such as local shared folders, external hard drives, network shared folders, rsync servers, and public cloud services.

Runs on Synology DiskStation Manager (DSM)

Synology DiskStation Manager (DSM) is a web-based operating system tailor-made for every Synology NAS. Featuring an intuitive multitasking user interface, DSM provides simple desktop-like experience to minimise efforts in exploring and managing your Synology NAS. The built-in Package Centre allows you to download and install a variety of packages designed specifically for your unique needs, including file backup, productivity, safeguard security and utilities. With all the built-in and add-on features, DSM provides you with complete and fine-grained control of your RS819, helping you maximise productivity and make the best out of of your digital assets in just a few clicks.




  • Realtek RTD1296 quad-core 1.4GHz

Hardware encryption engine

  • AES-NI


  • 2 GB DDR4

Drive Bays

  • 4

Compatible drive type

  • 4 x 3.5″ or 2.5″ SATA SSD/HDD (drives sold separately)

Hot swappable drive

  • Yes

External port

  • 2 x USB 3.0 port
  • 1 x eSATA port


  • 44 x 430.5 x 295.5 mm
  • 44 x 478 x 327.5 mm with server ears


  • 4.43 kg


  • 2 x Gigabit (RJ45)

Wake on LAN/WAN

  • Yes

Scheduled power on/off

  • Yes

System fan

  • Three (3)
  • 40 x 40 x 20 mm

AC input power voltage

  • 100V to 240V AC

Power frequency

  • 50/60Hz, single phase

Operating temperature

  • 5ºC to 35ºC (40ºF to 95ºF)

Storage temperature

  • -20ºC to 60ºC (-5ºF to 140ºF)

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

Supported RAID type

  • Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10

Storage management

  • Maximum single volume size: 108TB
  • Maximum system snapshots: 4,096
  • Maximum internal volume: 64

File sharing capability

  • Maximum local user account: 2,048
  • Maximum local group: 256
  • Maximum shared folder: 256
  • Maximum concurrent SMB/NFS/AFP/FTP connection: 200


  • Windows Access Control List (ACL), application privilege

Directory service

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


  • Firewall, encryption 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 onwards, Mac OS X 10.11 onwards

Supported browser

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

Interface languages

  • English
  • German
  • French
  • Italian
  • Spanish
  • Danish
  • Norwegian
  • Swedish
  • Dutch
  • Russian
  • Polish
  • Hungarian
  • Portuguese (Brazil)
  • Portuguese (Europe)
  • Turkish
  • Czech
  • Thai
  • Japanese
  • Korean
  • Chinese (Traditional)
  • Chinese (Simplified)

File Server & Synchronisation


  • Provide a universal portal to synchronise your files across various platforms, including Windows, macOS, Linux, Android and iOS.
  • The built-in universal portal allows you to access data anytime and anywhere.
  • Maximum number of hosted files: 100,000
  • Maximum number of concurrent connections for PC clients: 200

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

Cloud Sync

  • One or two-way synchronisation with public cloud storage providers including Alibaba Cloud OSS, Amazon Drive, Amazon S3-compatible storage, Backblaze B2, Baidu Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, Tencent COS, WebDAV servers, Yandex Disk

Universal Search

  • Offer global search into applications and files

iSCSI Storage

iSCSI Manager

  • Maximum iSCSI target: 128
  • Maximum iSCSI LUN: 256
  • iSCSI LUN clone/snapshot support

Data Protection & Backup Solution

Hyper Backup

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

Backup tools

  • DSM configuration backup, macOS Time Machine support, Cloud Station Backup
  • Shared folder sync – maximum task number: 4

Snapshot Replication

  • Maximum of shared folder snapshots: 256
  • Maximum of Replication: 16

Productivity & Collaboration

Collaboration tools

  • Collaborate with instant message service Chat, online editor Office, and scheduling assistant Calendar
  • Chat maximum user: 500
  • Office maximum user: 200
  • Calendar: support CalDAV and access via mobile devices

Note station

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



  • Support smart AI album with facial and subject recognition, similar photo detection, and photo editing and sharing features. Mobile applications are available on iOS and Android devices.

Other packages

  • Video Station, Photo Station, Audio Station, iTunes Server

Surveillance Station

  • Maximum IP cameras: 30 (total of 900 FPS at 720p, H.264)
  • Includes two free camera licences; additional cameras require the purchasing of additional licences

All-in-One Server

VPN server

  • Maximum connection: 20
  • Supported VPN protocol: PPTP, OpenVPN, L2TP/IPSec

Mail server

  • Supported Mail Server Protocols: POP3, SMTP, IMAP, Support LDAP/AD account

Mail station

  • Webmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customisable SMTP server

Web station

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

Other packages

  • DNS Server, RADIUS Server, Log Centre

Storage analyser

  • Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, large files, most recently modified files, least recently accessed files

Antivirus essential

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

Other packages

  • Additional 3rd-party packages available in Package Centre

Environmental safety

  • RoHS compliant

Package contents

  • 1 x Synology RS819 Enclosure
  • 1 x Quick Installation Guide
  • 1 x Accessory pack
  • 1 x AC power cord

Standard Warranty: 3-Years

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