Qnap TS-409U specs

CPU - Marvell 5281 500MHz

DRAM - 512 MB DDRII

Flash Memory - 8MB

HDD - 4 * 3.5" SATA I/II

LAN Port - 1 * Gigabit RJ-45 Ethernet port

LED Indicators - USB, Status, HDD 1, HDD 2, HDD 3, HDD 4, LAN

USB - 3 * USB 2.0, support USB printer, disk, digital camera, pen drive, card reader, USB hub, and USB UPS etc.

Buttons:
USB auto-copy button
Power button
Reset button

Alarm Buzzer - System Warning

Form Factor - 1U Rack Mount

Dimensions - 409.1(D) x 430(W) x 44.45(H) mm

Weight - Net weight: 5.2Kg; Gross weight: 7Kg

Temperature - 0~40°C

Humidity - 0~95% R.H.

Power Supply - Input: 100-240V AC, 47-63Hz, Output: 200W

Energy-saving Design - Smart fan

Thermal Solution - Heat dissipation by fan * 2


File server - File sharing across Windows/ Mac/ Linux/ Unix and centralized management

FTP server:
Support data access from remote location via FTP (max. 32 concurrent connections)
FTP with SSL/ TLS (explicit) mode
Passive FTP port range control

Backup server:
Client-side backup software-NetBak Replicator supports Instant, Schedule, and Auto-sync backup
3rd party backup software support: Acronis True Image, CA Brightstor ARCserve Backup, EMC Retrospect, Symantec Backup Exec

Printer server:
Network printer sharing via USB (support Windows & Mac platform)
Support all-in-one printer (max. 3 sets)

Remote Replication:
Block-level remote replication supports instant, schedule backup management; support synchronization mode

Web Server:
Establish users own web page and interactive websites with editable PHP.ini, SQLite and MySQL dual support

My SQL Server:
Support MySQL database server

UPnP Media Server:
Support UPnP multimedia technology; share stored photos and home videos on TV, listen to music on Hi-Fi system via DMP
Enjoy more than hundreds of worldwide Internet radio (built-in TwonkyMedia)
Support media playing with PS3, Xbox360, PSP
Support Nokia N95

iTunes Server:
iTunes server for music sharing on your network
Support Smart Playlist for iTunes software

Multimedia Station:
Image slide show and rotation (+90°, -90°)
Display photo details: dates, exposure time, aperture, etc.
Automatic thumbnail generation for easy browsing
Photo album access authority management
Multimedia files (video and audio) local playing
Automatic file categorization

Download Station:
New BT client: Support TCP, UDP, and encrypted BT download
Support PC-less BitTorrent/ FTP/ HTTP download
Unique remote download control software: QGet (Windows / Mac), allows you to control the download tasks of multiple Turbo Stations on one PC via LAN/ WAN.
BitTorrent download supports DHT (automatic relaying if interrupted)
Download configuration (current seed number, configurable port range, bandwidth control, download percentage, UPnP NAT port forwarding for BitTorrent download)
Download status list management (download percentage)

Surveillance Station:
Support 2 IP cameras for network surveillance
Software Specifications

Operation System:
Linux-embedded system

Networking:
TCP/IP, DHCP Client, DHCP Server, CIFS/SMB, AFP, NFS, HTTP, HTTPS, FTP, DDNS, NTP, Gigabit Jumbo Frame

File System:
EXT3 (Internal/ external HDD)
FAT (External HDD)
NTFS (External HDD)

Supported Operating Systems:
Microsoft® Windows® 98/ ME/ NT/ 2000/ XP/ 2003/ Vista/ Windows 7 (32bit & 64bit)
Macintosh® OS X
Linux / Unix

Disk Management:
Single disk, RAID 0 (Disk Stripping), RAID 1 (Disk Mirroring), RAID 5, RAID 5+ Hot spare, RAID 6, and JBOD (Linear Disk Volume), Multiple RAID
Online RAID capicity expansion, online RAID level migration
Disk usage status management
Check disk (Check Linux file system)
HDD S.M.A.R.T.
Bad blocks scan

User Management:
User quota management (per user)
Windows AD Service support
User account management (max. 1,024 users)
User group management (max. 128 groups)

File System Management:
Network share management (max. 256 shares)
Share folder level ACL support
Unicode support
Journaling file system
Web File Manager

System Tools:
E-mail alert (SMTP authentication)
HDD standby mode
Disk usage alert
Automatic power on after power loss
System firmware upgrade
Change homepage logo
Back up, restore, reset system settings
Smart fan setting
Configurable management port
Easy IP filter management
Secure remote login by SSH connection; remote login by Telnet connection
USB, SNMP UPS support
Network recycle bin

Event Logs:
Complete system logs (system events management, connection logs, current connection of on-line users)

Multilingual Support:
English, Traditional Chinese, Simplified Chinese, Japanese, Korean, French, German, Italian, Spanish, Russian, Polish, Danish, Finnish, Norwegian, and Swedish

Backup Management:
PC-client backup software- NetBak Replicator: Instant/ Schedule/ Auto-sync backup
Encrypted remote replication
One touch USB copy for different destination folders
Backup to external storage device