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• CPU Frequency: 1.67GHz, Dual Core
• Floating Point
• Memory: 1GB
• Internal HDD¹: 3.5" SATA(II) X4 or 2.5" SATA/SSD X4
• Max Internal Capacity: 12TB (4x 3TB hard drives)⁹
(See All Supported HDD)
• External HDD Interface: USB 2.0 port X2, eSATA port X1
• Size (HxWxD): 184mm X 168mm X 230mm
• Weight: 2.23kg
• LAN: Gigabit X1
• Wireless Support¹¹

• Fan: X2(80mmX80mm)
• Wake on LAN/WAN
• Noise Level²：22.5dB(A)
• Power Recovery
• AC Input Power Voltage: 100V to 240V
• Power Frequency: 50Hz to 60Hz, Single Phase
• Power Consumption³: 60W(Access); 20W(HDD Hibernation)
• 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
• Maximum Operating Altitude: 10,000 feet
• Certification: FCC Class B, CE Class B, BSMI Class B, VCCI Class B

File Browser

File Station

FTP Server

• Bandwidth Control
• Custom FTP Passive Port Range
• Anonymous FTP
• Transfer Log

Mail Server

• Supported Mail Server Protocol : POP3, SMTP, IMAP

Web Station

• Virtual Host (up to 30 websites)
• PHP/MySQL
• Alternative HTTP Error Page
• 3rd-Party Applications Support

Surveillance Station

• Default IP cam #: 1
• MAX IP cam # (licenses required): 20⁴
  (See All Supported IP Cameras)
• Total Frames per Second (FPS): 200 FPS @ D1¹²
• Recording Modes：Manual, Continuous, Motion Detection, Alarm, Motion Detection and Alarm
• Event Playback：Sync Mode (4 Channels), Time Slicing Mode
• Centralized Management
• Compression Formats：MJPEG, MPEG-4, H.264

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 Format⁵: 3G2, 3GP, ASF, AVI, DAT, DivX, FLV, M4V, MOV, MP4, MPEG, MPG, QT, WMV, XviD, RM, RMVB, VOB, RV30, RV40, AC3, AMR, WMA3

Download Station

• Supported Download Protocols: BT/HTTP/FTP/NZB/eMule
• Custom BitTorrent^TM Port Range
• BitTorrent^TM / eMule Bandwidth Control

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

DLNA/UPnP Media Server

• PS3/Xbox 360 Support
• Supported Audio Format: AAC, FLAC, M4A, MP3, Ogg, Vorbis, PCM, WAV, WMA, WMA VBR, WMA PRO, WMA Lossless
• Supported Video Format:3GP, 3G2, ASF, AVI, DAT, DivX, DVR-MS, ISO, M2T, M2TS, M4V, MKV, MP4, MPEG1, MPEG2, MPEG4, MTS, MOV, QT, SWF, TP, TRP, TS, VOB, WMV, XviD, 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, 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

iTunes Server

• Supported Audio Format⁶: MP3, M4A, M4P, WAV, AIF
• Supported Video Format: M4V, MOV, MP4
• Supported Playlist Format: M3U, WPL

Printer Server⁷

• Max Printer #: 2
• Printing Protocols: LPR, CIFS, AppleTalk, AirPrint, Multi Functional Print Server

Synology Packages

• Squeezebox Server
• Mail Station 2
• Webalizer
• phpMyAdmin
• Time Backup
• HASP

iPhone/Android Applications

• DS photo+
• DS audio
• DS cam
• DS file (iPhone only)

Networking Protocols

• CIFS
• AFP
• FTP
• WebDAV
• iSCSI
• Telnet
• SSH
• NFS
• SNMP

File System

• EXT4
• EXT3
• FAT⁸
• NTFS⁸

Volume Management

• Synology Hybrid RAID
• Max iSCSI Target：32
• Max iSCSI LUN：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, RAID 1 to RAID 5, RAID 5 to RAID 5+Spare
• 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 Accounts: 2,048
• Max Groups: 256
• Max Shared Folder: 256
• Max Concurrent Connections(SAMBA, FTP, AFP): 512

Windows Access Control List (ACL)

Windows ADS Domain Integration

• Domain Users login via Samba/AFP/FTP/File Station

Backup Solutions

• Network Backup
• Shared Folder Sync
• Local Backup
• Desktop Backup (using Synology Data Replicator 3 or Apple Time Machine backup application)
• Time Backup - Max task number：8
• 3rd-Party Backup Support

Security

• FTP over SSL/TLS
• IP Auto-Block
• Firewall
• Encrypted Network Backup over Rsync
• HTTPS Connection

Management

• Auto DSM Upgrade
• Administrator Group
• Email Notification
• SMS Notification
• Customized User Quota
• DDNS Support
• IPv6 Support
• PPPoE
• Resource Monitor
• UPS Management
• Scheduled Power On/Off
• Custom Management UI HTTP/HTTPS Ports

HDD Management

• HDD Hibernation
• S.M.A.R.T.
• Dynamic Bad Sector Mapping

Utilities

• Synology Assistant
• Synology Data Replicator

Supported Clients

• Windows 2000 onward
• Mac OSX 10.3 onward
• Ubuntu 9.04 onward

Supported Browsers

• Internet Explorer 7
• Internet Explorer 8
• Internet Explorer 9
• Firefox 3.5
• Firefox 3.6
• Safari 4 (Mac)
• Safari 5 (Mac)
• Chrome

Supported Mobile Devices
(Photo Station, File Station)

• iPhone OS 2.2.1 onward
• Android OS 1.5 onward
• Windows Mobile (IE Mobile or Opera 9.0 onward)
• Symbian OS 9.1, S60 3rd Edition onward

Language

• Czech, Danish, Dutch, English, French, German, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese Brazil, Portuguese European, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish

Environment

• RoHS Compliant

Package Content

• DS411+ Main Unit
• Installation CD/DVD
• Welcome Note
• Assembling Kit
• AC Power Adapter
• AC Power Cord
• 2M RJ-45 LAN Cable

Optional Accessories

• Remote
• Camera License Pack