
RackStation RS816
Synology RackStation RS816 is a compact and scalable 4-bay rackmount NAS with outstanding
performance, providing a comprehensive rack-level storage solution for any growing business to
effectively manage, share and sync data. You can easily expand your storage capacity with up
to 8 drives, minimizing the time spent on setup and maintenance. Synology RS816 is backed with
Synology’s 3-year limited warranty.
Highlights
● Scalable 4-bay 1U rackmount
NAS for business workgroups
● Encryption reading performance
improved 80% to 148.98 MB/s and
writing performance improved
142% to 81.42 MB/s
● Outstanding performance of
219.62 MB/s in reading and
145.15 MB/s in writing under
Windows environment
● Dual-core CPU with built-in
oating-point unit
● 12-inch depth allows for ultra-
dense installation
● Dual 1GbE LAN with failover and
Link Aggregation support
● Scale up to 8 drives with Synology
2
RX415
● Runs on Synology DiskStation
Manager (DSM)
1
1
Compact Rackmount NAS with Great Performance
Synology RS816 is a compact 1U 4-bay NAS with a depth of only 12 inches, desgined to
boost your productivity in your workplace. Equipped with a Marvell® ARMADA™ dual-core
CPU and 1GB DDR3 RAM, RS816 delivers high performance – 219.62 MB/s reading speed
and 145.15 MB/s writing speed – under RAID 5 conguration in a Windows® environment.
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Powered with a hardware encryption engine, RS816 excels with its high-speed encrypted
data transmission – over 148.98 MB/s for reading and 81.42 MB/s for writing – allowing
you to enjoy rapid data transmssion while keeping your valuable data secure and away from
potential threats.
RS816 comes with one eSATA port and dual USB 3.0 ports for fast data transmission to
various kinds of external storage devices. The hot-swappable drive tray design allows easy
installation and maintenance for both 2.5-inch and 3.5-inch HDDs without any additional
tools. Dual Gigabit LAN ports provide failover support to ensure continual network service
uptime and Link Aggregation to increase overall network bandwidth.
Flexible Scability for More Capacity
As your data storage continues to grow, Synology RS816 can grow with you. RS816 can be
connected to dedicated expansion units for additional storage on the y, growing capacity
with minimal eort. When paired with a RX415 expansion unit through the specially designed
eSATA connector, RS816 can be expanded to up to a total of 8 drives with a raw capacity of up
to 64TB.
Comprehensive Ofce Applications
With Synology RS816 and its rich business applications, you can boost personal productivity
and more importantly, work more eciently. SpreadSheet allows you to create, edit and
simultaneously collaborate on a spreadsheet with multiple users on any browser, and share it
with a specic group of people eortlessly. VPN Server oers an easy VPN solution, providing
a secure way of connecting to a private LAN from a remote location. RADIUS Server
strengthens network security by overseeing wireless access authentication via the RADIUS
(Remote Authentication Dial-In User Service) networking protocol. Surveillance Station
oers a centralized interface to manage IP cameras deployed in your oce or home, allowing
users traveling miles away to safeguard their personal environment by watching live views,
recording events, and taking snapshots with a computer or iOS/Android device.

Cross-platform File Synchronization
Auto-synchronize your les among
DiskStation, PC and mobile devices using
Synology Cloud Station.
Anytime Availability
Access your RackStation anywhere using
Synology mobile apps.
Cross-Platform File Sharing and Data Synchronization
Synology RS816 supports comprehensive network protocols, ensuring a seamless le
sharing experience across Windows®, Mac®, and Linux® platforms. Windows AD and LDAP
integration allow RS816 to t quickly and eortlessly into any existing network environment
without the necessity to recreate user accounts. Cloud Sync keeps your Dropbox, Google™
Drive, Microsoft OneDrive, Baidu and Box storages in sync with your Synology NAS at home.
The Cloud Station Suite allows you to sync les among multiple devices — Windows PC,
Mac, Linux, iOS or Android™ tablets/phones — eortlessly keeping everything up-to-date. All
le sharing over the Internet is protected at a high security level with the HTTPS, rewall, and
IP auto-block mechanisms supported by RS816.
Easy and Smart Backup Solutions
With block-level incremental backup and cross-version deduplication, Synology Hyper
Backup provides multi-version backup with optimized storage utilization and allows multiple
backup destinations to local shared folders, external hard drives, network shared folders,
rsync servers, and public cloud services. Hyper Backup Vault provides an overview of all the
backup history and storage consumption of each backup task.
Anywhere/Anytime Availability
QuickConnect and EZ-Internet congure your RS816 to be accessed over the Internet with
minimal eort. Multimedia content is easily accessible via Synology’s popular mobile apps like
DS photo, DS audio, and DS video. Other apps, like DS download, DS le, and DS cloud,
allow le download/access/synchronization from anywhere at anytime.
Energy Efcient and Easy Management Design
Synology RS816 is designed and developed with energy eciency in mind. Compared with
its other rackmount storage server counterparts, RS816 consumes only 27.9W in regular
operation. The support of Wake on LAN/WAN and scheduled power on and o can further
reduce power consumption and operation cost. HDD hibernation can be congured to take
eect automatically when the system has been inactive for a specied period of time. This not
only saves energy but also extends the lifespan of the hard disks.
All Synology products are produced with RoHS compliant parts and packed with recyclable
packing materials. Synology acknowledges its responsibility as a global citizen to continually
work to reduce the environmental impact of every product produced.

Connections & Buttons
Power indicator
1
Beep o button
5
Power port
9
eSATA port
13
Power button
2
Status indicator
6
LAN (RJ-45) port
10
Reset button
14
Technical Specications
Hardware
CPU
Hardware encryption engine
Floating point unit
RAM size
Compatible drive type
Maximum internal raw capacity
External ports
Size (HxWxD)
Weight
LAN
Wake on LAN/WAN
Scheduled power on/o
AC input power voltage
Power frequency
Operating temperature
Storage temperature
Relative humidity
Marvell ARMADA 385 88F6820 dual-core 1.8GHz
Yes
Yes
DDR3 1GB
3.5”/2.5” SATA III/II x 4 (hard drives not included)
32TB (8TB HDD x 4) (actual capacity depending on volume types)
USB 3.0 port x 2, eSATA port x 1
44 mm x 430.5 mm x 290 mm
4.34 kg
Gigabit (RJ-45) x 2
Yes
Yes
100V to 240V
50Hz to 60Hz, single phase
5°C to 35°C (40°F to 95°F)
-20°C to 60°C (-5°F to 140°F)
5% to 95% RH
3
7
11
LAN indicator
Drive tray
USB 3.0 port
4
8
12
Disk indicator
Fan
Console port
General
Networking protocols
File system
Storage management
Supported RAID type
File sharing capability
Privilege
Directory service
Security
Utilities
Supported clients
Supported browsers
CIFS, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN™ , L2TP)
Internal: ext4
External: ext4, ext3, FAT, NTFS, HFS+ (read only)
Maximum single volume size: 16TB, Maximum internal volume: 256, Maximum iSCSI Target: 10, Maximum iSCSI LUN: 256
Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Maximum user account: 2048, Maximum group: 256, Maximum shared folder: 256,
Maximum concurrent CIFS/AFP/FTP/File Station connection: 256
Windows Access Control List (ACL)
Windows AD Integration: Domain Users login via Samba (CIFS)/AFP/FTP/File Station, LDAP integration
FTP over SSL/TLS, IP auto-block, rewall, encrypted network backup over Rsync, HTTPS connection
Synology Web Assistant, Cloud Station Drive, Cloud Station Backup, Cloud Sync Decryption Tool, Evidence Integrity Authenticator, Photo Station Uploader
Windows 7 onwards and Mac OS X® 10.10 onwards
Chrome™, Firefox®, Internet Explorer® 9 onwards, Safari® 8 onwards, Safari (iOS® 7 onwards on iPad®), Chrome (Android 4.0 onwards on tablets)

Language
Applications
File Station
Backup solutions
FTP Server
Printer Server
Security Advisor
iOS/Android™ applications
Windows Phone® applications
Add-on Packages
Antivirus Essential
Cloud Station Server
Cloud Sync
DLNA/UPnP® Media Server
Download Station
Log Center
Note Station
Storage Analyzer
Surveillance Station
VPN Server
Web Station
Other packages
English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar,
Português do Brasil, Português Europeu, Türkçe, Český,
Virtual drive, remote folder, Windows ACL editor, compress/extract archived les, bandwidth control for specic users or groups, create sharing links, transfer
logs
Network backup; local backup; desktop backup; conguration backup; OS X Time Machine; backup data to public cloud;
shared folder sync - maximum task number: 4
Bandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocols, boot over the network with TFTP
and PXE support, transfer logs
Maximum printer: 2, printing protocols: LPR, CIFS, IPP, iOS printing, Google Cloud Print™, multi functional print server (MFP functions are for Windows PC
only)
Malware detection/removal, user account/password, network, system-related security scan
DS cloud, DS le, DS nder, DS cam, DS note, DS audio, DS download, DS photo, DS video
DS le, DS nder, DS audio, DS download, DS photo, DS video
Full system scan, scheduled scan, white list customization, virus denition auto update
Maximum concurrent le transfers: 256, retain historical and deleted le versions
One or two-way synchronization with public cloud storage providers including Amazon Cloud Drive, Amazon S3-compatible storage, Baiduyun, Box,
Dropbox, Google Cloud Storage, Google Drive, hubiC, Megafon Disk, Microsoft OneDrive, OpenStack Swift-compatible storage, WebDAV servers, Yandex Disk
DLNA certied, PS3®/PS4®/Xbox 360®/Xbox One® support
Supported download protocols: BT/HTTP/FTP/NZB/eMule
Maximum concurrent download task: 50
SSL connection, log rotation: 6 months, 1 year, 2 years, 3 years, email notication
Rich-text note organization with versioning, encryption, sharing, media embedding and attachments
Volume and quota usage, total size of les, volume usage and trends based on past usage, size of shared folders, largest/most/least frequently modied les
Maximum IP camera: 16 (total of 480 FPS at 720p, H.264) (Including two free camera licenses. Procurement of additional licenses is required.)
Maximum connections: 15; supported VPN protocols: PPTP, OpenVPN™, L2TP
Virtual host (up to 30 websites), PHP/MariaDB®, 3rd-party applications support
Photo Station, Audio Station, iTunes® Server, 3rd-party packages
Environment and Packaging
Environment
Package content
Optional accessories
Warranty
*Model specications are subject to change without notice. Please refer to www.synology.com for the latest information.
1. The performance gures vary on dierent environments. Synology is dedicated to continual performance enhancement. Please nd the latest gures on www.synology.com.
2. RS816 supports one Synology Expansion Unit RX415, sold separately.
SYNOLOGY INC.
Synology is dedicated to taking full advantage of the latest technologies to bring businesses and home users reliable and affordable ways to centralize data storage, simplify data
backup, share and sync les across different platforms, and access data on-the-go. Synology aims to deliver products with forward-thinking features and the best in class customer
services.
Copyright © 2016, Synology Inc. All rights reserved. Synology, the Synology logo are trademarks or registered trademarks of Synology Inc. Other product and company names
mentioned herein may be trademarks of their respective companies. Synology may make changes to specication and product descriptions at anytime, without notice. Printed in
Taiwan.
RS816-2016-ENU-REV001
Headquarters
Synology Inc. 3F-3, No. 106, Chang An W. Rd., Taipei, Taiwan Tel: +886 2 2552 1814 Fax: +886 2 2552 1824
China
Synology Shanghai
20070, Room 516, No. 638
Hengfeng Rd., Zhabei Dist.
Shanghai, China
RoHS Compliant
RS816 main unit, Welcome note, accessory pack, AC power cord
Camera License Pack, VS360HD, Synology Rail Kit Sliding (RKS1314), Synology Rail Kit Mounted (RKM114), expansion unit (RX415)
3 Years
France
Synology France SARL
39 rue Louis Blanc
92400 Courbevoie, France
Tel: +33 147 176288
North & South America
Synology America Corp.
3535 Factoria Blvd SE #200
Bellevue, WA 98006, USA
Tel: +1 425 818 1587
United Kingdom
Synology UK Ltd.
Unit C, Denbigh West Business Park
Third Avenue, Bletchley
Milton Keynes, MK1 1DH, UK
Tel: +44 1908 366380
Germany
Synology GmbH
Grafenberger Allee 125
40237 Düsseldorf
Deutschland
Tel: +49 211 9666 9666