Synology DiskStation DS411+II
High-Performance & Easy to Manage 4-bay All-in-1 NAS Server for SMB Users
Synology® DiskStation DS411+II is specifically designed for small and medium-sized businesses who
need a high-performance, easy to manage, and full-featured network attached storage solution to
centralize data backups, protect critical assets and share files across different platforms. Synology
protects your investment in the DS411+II with a 2-year limited warranty.
110.73 MB/sec Reading 105.48 MB/sec Writing1
Running on Synology DiskStation Manager (DSM)
Complete Backup Solutions
Windows ADS and ACL Supported
Hard Drive Hibernation
Power-saving with only 60W in Operation
High Performance
Full-featured Business Applications
The Synology DS411+II is designed for business users who require a
reliable storage solution and demand high-performance for file sharing.
The Synology DS411+II delivers an average 110.73 MB/sec reading and
105.48MB/sec writing speeds under RAID 5 configuration in a Windows®
The Synology DS411+II runs on the renowned operation system, Synology
DSM, offering applications and features designed specifically for SMBs.
Comprehensive network protocol support assures seamless file sharing
across Windows, Mac, and Linux platforms. Windows ADS integration allows
the Synology DS411+II to quickly and easily fit in an existing business
network environment with no need to recreate user accounts.
Easy Setup and Management
For users who are limited on time or may not be familiar with configuring
complicated routers, the Synology EZ-Internet Wizard simplifies the process
of allowing access to the Synology DS411+II from the Internet. The EZInternet Wizard walks the user through all of the settings required including
firewall settings, port-forwarding, PPPoE setup and DDNS registration for a
hassle-free solution to remote access.
Running on AJAX technology, DiskStation Manager’s UI is intuitive and
easy-to-use. To save time and minimize redundancy, common tasks are
automated, such as creating private shared folders for a large number of
users with the User Home feature. Sub-folder privilege settings further
extend the flexibility to allocate permissions to different workgroups.
Flexible RAID Management
The Synology Hybrid RAID (SHR) automatically builds an optimal RAID
volume with data protection based on the hard drives installed, eliminating
the need to have hard drives of identical size, while still offering a manual
setup option for advanced users.
Multiple Volumes on RAID allows you to create more than one volume on
a RAID structure, providing a flexible and efficient way to manage your
storage across all available hard drives. When the need arises to expand the
volumes, simply allocate more storage space on the UI, and DSM does the
rest for you without any service disruption.
Complete Backup Solutions
The Synology DS411+ offers a centralized backup target to consolidate
fragmented and unstructured data across the network. Integrating easily
into a current network structure and compatible with Windows®, Mac®, and
Linux systems, the DS411+ provides the entire office data redundancy and
protection. PC Users can back up their data to the Synology DS411+ using
the free Synology Data Replicator software, while Mac OS X users enjoy
native Apple® Time Machine® integration. A backup wizard is also provided
for backing up data in the DS411+ to another Synology DiskStation or any
rsync server via an encrypted transmission, or to an external hard drive via
USB or eSATA connection. Furthering options, the wizard also makes it easy
to backup to the cloud via Amazon® S3.
Data Sheet
Windows ACL support on DS411+II provides much finer-grained access
control and efficient privilege settings, allowing IT staffs to set up privileges
to files and folders on DS411+II through their familiar Windows user
interface. The privileges set on Windows ACL will be applied to all access
entries, including AFP, FTP, File Station, NFS and WebDAV. The secure
privilege offers IT staff peace of mind, no worries about any loopholes.
Internet file access is simplified with the included encrypted FTP server
and the web-based file explorer, Synology File Station. HTTPS, the built-in
firewall, and IP auto-block support ensure file sharing over the Internet is
protected at a high security level.
A wealth of additional features allows the Synology DS411+II to replace
several pieces of network hardware. Synology Web Station with support
for PHP/MySQL content allows for the hosting of up to 30 websites
on a single Synology DS411+II. Synology Surveillance Station offers a
centralized interface to safeguard the office environments by deploying IP
cameras throughout the network. The built-in mail server turns a Synology
DS411+II into a dedicated mail service provider and the USB printer sharing
capability minimizes businesses’ printing cost by sharing printing resources
throughout the office.
Using the NFS protocol or iSCSI target support within DiskStation Manager,
the Synology DS411+II provides seamless serving with Windows, Linux, or
Virtual Machine Servers.
Energy Efficient Design
Synology DiskStations are designed and developed with energy efficiency
in mind. Compared with the average PC counterparts, the Synology
DS411+II consume relatively low amount of power at 60 watts only in
operation. The support of Wake on LAN/WAN, scheduled power on and off
and hard drive hibernation can further reduce power consumption and
operation cost.
All Synology products are produced with RoHS compliant parts and
packed with recyclable packing materials. Synology acknowledges
the responsibility as a global citizen to continually work to reduce the
environmental impact of every product produced.
Data Sheet
Technical Specifications
CPU: Dual Core 1.8 GHz
RAM Size: DDR2 1 GB
Internal HDD2: 4X 3.5” SATA(II) or 4X 2.5” SATA/SSD
External HDD Interface: 2X USB ports, 1X eSATA port
Size: 168mm X 184mm X 230mm
Weight: 2.23kg
LAN: 1X Gigabit
Wireless Support3
Fan: 2X (80mm X 80mm)
Noise Level4: 22.5dB(A)
Power Recovery
AC Input Power Voltage: 100V to 240V
Power Frequency: 50Hz to 60Hz, Single Phase
Max Internal Capacity: 12TB (4X 3TB hard drives)5
Operating Temperature: 5°C to 35°C (40°F to 95°F)
Storage Temperature: -10°C to 70°C (15°F to 155°F)
Relative Humidity: 5% to 95% RH
Max Operating Altitude: 10,000 feet
Power Consumption6: 60W (Access); 19.8W (HDD
• Certification: FCC Class, CE Class B, BSMI Class B
File Station
Safety Lock
USB 2.0
AC Input
FTP Server
• Bandwidth Control
• Custom FTP Passive Port Range
• Anonymous FTP
• Transfer Log
Web Station
• Virtual Host (up to 30 websites)
• Alternative HTTP Error Page
• 3rd-Party Applications Support
Surveillance Station
• Default IP cam #: 1
• MAX IP cam # (licenses required): 207
Photo Station
• Supported Image Format: BMP, JPG (jpe, jpeg), GIF, RAW
(arw, srf, sr2, dcr, k25, kdc, cr2, crw, nef, mrw, ptx, pef, raf,
3fr, erf, mef, mos, orf, rw2, dng, x3f )
• Supported Video Format8: 3G2, 3GP, ASF, AVI, DAT, DivX,
Download Station
• Supported Download Protocols: BT/HTTP/FTP/NZB/eMule
• Custom BitTorrent Port Range
• BitTorrent / eMule Bandwidth Control
cr2, crw, nef, mrw, ptx, pef, raf, 3fr, erf, mef, mos, orf, rw2,
dng, x3f )
• Supported Subtitles Format: srt, psb, smi, ass, ssa, sub,
idx, ifo
Audio Station
• Supported Audio Format: (USB Mode) AAC, FLAC, M4A,
MP3, Ogg Vorbis, WMA, WMA VBR; (Streaming Mode)
MP3, M4A, M4B
• Supported Playlist Format: M3U, WPL
• Internet Radio: SHOUTcast, Radioio
iTunes Server
• Supported Audio Format9: MP3, M4A, M4P, WAV, AIF
• Supported Video Format: M4V, MOV, MP4
• Supported Playlist Format: M3U, WPL
DLNA/UPnP Media Server Support
• PS3/Xbox 360 Support
• Supported Audio Format: AAC, FLAC, M4A, MP3, Ogg
• Supported Video Format: 3GP, 3G2, ASF, AVI, DAT, DivX,
RV30, RV40, AC3, AMR, WMA3
• Supported Image Format: BMP, JPG (jpe, jpeg), GIF, ICO,
PNG, PSD, TIF (tiff ), UFO, RAW (arw, srf, sr2, dcr, k25, kdc,
Printer Support10
• Max Printer #: 2
• Supported Protocols: LPR, CIFS, AppleTalk
Synology Packages
• Mail Station
• Squeezebox Server
• Weblizer
• phpMyAdmin
• Time Backup
iPhone Applications
• DS photo+
• DS audio
• DS cam
• DS file (iPhone only)
General Specifications
Networking Protocols
Backup Solutions
• Network Backup
• Local Backup
• Desktop Backup (using Synology Data Replicator 3 or
Apple Time Machine backup application)
• 3rd-Party Backup Support
File System
• EXT4
• EXT3 (External Disk Only)
• FAT (External Disk Only)
• NTFS (External Disk Read Only)+9
Volume Management
• Synology Hybrid RAID
• MAX iSCSI Target / LUN: 32 / 256
• Volume Type: Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID
5+Spare, RAID 6, RAID 10
• RAID Migration: from Basic to RAID 1, Basic to RAID 5,
Basic to RAID 5+Spare, RAID 1 to RAID 5, RAID 1 to RAID
5+Spare, RAID 5 to RAID 5+Spare, RAID 5 to RAID 6
• Expand RAID 1, RAID 5, RAID 5+Spare or RAID 6 with
Larger Hard Drives
• Expand RAID 5, RAID 5+Spare or RAID 6 by adding a Hard
Drive On The Fly
File Sharing Capability
• Max User Account: 2048
• Max Group: 256
• Max Shared Folder: 256
• Max Concurrent Connections (SAMBA, FTP, AFP): 512
Windows ADS Domain Integration
• Domain Users login via Samba/AFP/FTP/File Station
• FTP over SSL/TLS
• IP Auto-Block
• Firewall
• Encrypted Network Backup over rsync
• HTTPS Connection
• DSM upgrade
• Email Notification
• SMS Notification
• Customized User Quota
• DDNS Support
• Resource Monitor
• UPS Management
• Scheduled Power On/Off
• Custom Management UI HTTP/HTTPS Ports
• Synology Assistant
• Synology Download Redirector
• Synology Data Replicator 3
Supported Browsers
• Chrome 8
• Internet Explorer 7 and 8
• Firefox 3.5 and 3.6
• Safari 4 and 5 (Mac)
Supported Clients
• Windows 2000 onward
• Mac OS X 10.3 onward
• Ubuntu 9.04 onward
Supported Mobile Devices (Photo Station, File Station)
• iPhone OS 2.2.1 onward
• Android OS 1.5 oneard
• Windows Mobile (IE Mobile or Opera 9.0 onward)
• Symbian OS 9.1, S60 3rd Edition onward
• English, Deutsch, Français, Italiano, Español, Dansk,
Norsk, Svensk, Nederlands, Русский, Polski, Magyar,
Português do Brasil, Português Europeu, Türkçe, Český,
HDD Management
• HDD Hibernation
• S.M.A.R.T.
• Dynamic Bad Sector Mapping
Environment and Packaging
• RoHS Compliant
Package Content
• DS411+II Main Unit
Founded in 2000, Synology is a young and energetic
company dedicated to developing high-performance,
reliable, versatile, and environmentally-friendly
Network Attached Storage (NAS) products. Our goal
is to deliver user-friendly solutions and solid customer
service to satisfy the needs of businesses, home offices,
individual users and families.
Copyright © 2011, 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 specification and product
descriptions at anytime, without notice.
Printed in Taiwan,
1. The performance figures are achieved in Synology lab by using
very powerful client computers with extremely optimized
network settings, and could vary on different environments. A
regular office desktop/notebook may not be able to achieve these
high performance figures.
2. Hard drive not included.
3. Wireless dongles not included. Please check http://www.synology.
com/ for supported wireless dongles
4. Fully loaded with Seagate 1TB ST31000520AS hard drive(s)
Installation DVD
Welcome Note
Assembling Kit
AC Power Adaptor
AC Power Cord
• 2M RJ-45 LAN Cable
Optional Accessories
• Remote
• Camera License Pack
in operation; Two G.R.A.S. Type 40AE microphones, each
set up at 1 meter away from the DiskStation front and
rear; Background noise: 17.2 dB(A); Temperature: 23.6°C;
Humidity: 58.2%; More details about dB(A) value, check:
5. The actual capacity will differ according to volume types.
6. Measured with 4 Seagate 750GB ST3750640NS hard drive. The
figures could vary on different environments.
7. 1 free license to install 1 IP camera. Additional licenses can be
purchased to expand the license quota.
8. User can click and download the following video formats: RM,
RMVB, VOB, RV30, RV40, AC3, AMR, WMA3, but not able to play it
in Photo Station as compressed Flash video.
9. The music in WAV and AIF format can be streamed, but the
metadata (ex: title, album) may not be indexed on the iTunes.
10.For Mac users, DS411+II supports PostScript USB printers only.
External Disk
USB Printer
Synology Inc.
3F-3, No. 106, Chang An W. Rd., Taipei, Taiwan
Tel: +886 2 2552 1814 Fax: +886 2 2552 1824
Wireless Router
Windows ADS Server
North & South America
Synology America Corp.
2899 152nd Ave NE, Redmond, WA 98052. USA
Tel: +1 425 818 1587
Synology UK Ltd.
Davy Avenue, Knowlhill,
Milton Keynes, Bucks,
Tel: +44 01908 673 709
PC / Mac / Linux
PC / Mac / Linux
IP Camera
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