Synology DS211+ specs

CPU Frequency - 1.6GHz

Hardware Encryption Engine

Memory - 512MB

Internal HDD2 - 3.5" SATA(II) X2 or 2.5" SATA/SSD X2

Max Internal Capacity - 6TB (2x 3TB hard drives)3(See All Supported HDD)

Hot Swappable HDD

External HDD Interface - USB 2.0 port X3, eSATA port X1, SD card slot X1

Size (HxWxD) - 165mm X 108mm X 233.2mm

Weight - 1.25kg

LAN - Gigabit X1
Wireless Support

Fan：X1(92mmX92mm)

Noise Level：19.4dB(A)

Power Recovery

AC Input Power Voltage - 100V to 240V

Power Frequency - 50Hz to 60Hz, Single Phase

Power Consumption5 - 24W(Access); 13W(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

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): 126
(See All Supported IP Cameras)
Total Frames per Second (FPS): 120 FPS @ D110
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 Format7: 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 Port Range
BitTorrent / 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 Format8: MP3, M4A, M4P, WAV, AIF
Supported Video Format: M4V, MOV, MP4
Supported Playlist Format: M3U, WPL

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

Synology Packages
Squeezebox Server
Mail Station 2
Webalizer
phpMyAdmin
Time Backup
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
FAT
NTFS

Volume Management
Synology Hybrid RAID
Max iSCSI Target：10
Max iSCSI LUN：10
Volume Type: Basic, JBOD, RAID 0, RAID 1
RAID Migration: from Basic to RAID 1
Expand RAID 1 volume with Larger Hard Drives

File Sharing Capability
Max User Accounts: 2,048
Max Groups: 256
Max Shared Folder: 256
Max Concurrent Connections(SAMBA, FTP, AFP): 256

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
SDCopy
USBCopy
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