QNAP TS-431U 4-Bay SMB NAS Server

QNAP TS-431U 4-Bay SMB NAS Server

Brand QNAP
Model TS-431U-US

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Adorama TS-431U 4-Bay 1U Rack Mountable SMB NAS Server, Freescale ARM Cortex-A9 1.2GHz, 1GB RAM, 3.5" or 2.5" Drive, QTS 4.1 Embedded Linux 479.00 $ Visit Store Website
Bhphotovideo QNAP TS-431U 4-Bay SMB NAS Server 479.00 $ Visit Store Website


Hardware Specifications
1.2 GHz Freescale ARM Cortex-A9 Dual-Core
Floating Point Unit
Hardware Encryption Engine
Flash Memory
512 MB
Hard Disk Drive
4 x 3.5" or 2.5" SATA III 6 Gb/s or SATA II 3 Gb/s hard drives or SSDs
Hard Disk Tray
4 x hot-swappable and lockable trays
LAN Port
2 x Gigabit RJ-45 Ethernet ports with porting trunking support
LED Indicators
Status, LAN, USB, HDD 1-4
USB Ports
4 x USB 3.0 ports (rear) 1 x USB 2.0 port (front) Supports USB printers, pen drives, USB UPS, and more
Power, USB One-Touch-Copy, Reset
Alarm Buzzer
System warning
Form Factor
1U, rack mountable
Power Consumption
HDD standby: 19.3 W Typical operation: 34.9 W (with 4 x 2 TB HDDs installed)
Operating Temperature
32 to 104°F / 0 to 40°C
Relative Humidity
5 to 95% non-condensing
Operating Max Wet Bulb
80.6°F / 27.0°C
Power Supply
Input: 100-240 VAC, 50/60 Hz Output: 250 W
2 x 4 cm cooling fans (12 VDC)
Software Specifications
Operating System
QTS 4.1 (embedded Linux)
Supported Clients
Windows 7 and Windows Server 2003 onward, Apple Mac OS X onward, Linux, & UNIX
Supported Browsers
Google Chrome Microsoft Internet Explorer 10+ Mozilla Firefox Apple Safari
Multilingual Support
Chinese (Traditional & Simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Thai, and Turkish
File System
Internal hard drive: EXT4 External hard drive: EXT4, EXT3, NTFS, FAT32, and HFS+
TCP/IP: IPv4 & IPv6 Dual Gigabit NICs (failover, multi-IP settings, port trunking/NIC teaming) Service binding based on network interfaces Proxy client, proxy server DHCP client, DHCP server NTP server Protocols: CIFS/SMB, AFP(v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, and SMSC UPnP & Bonjour discovery USB Wi-Fi adapter support
Network access protection with auto-blocking: SSH, Telnet, HTTP(S), FTP, CIFS/SMB, AFP CIFS host access control for shared folders AES 256-bit volume-based data encryption AES 256-bit external drive encryption Importable SSL certificate Instant alert via E-mail, SMS, and beep Antivirus protection
Storage Management
Single Disk, JBOD, RAID 0, 1, 5, 6, 10, and 5 + spare Global hot spare Online RAID capacity expansion Online RAID level migration Bad block scan and hard drive S.M.A.R.T. Bad block recovery RAID recovery Bitmap support
Power Management
Wake on LAN Internal hard drive standby mode Scheduled power on/off Automatic power on after power recovery USB and network UPS support with SNMP management
Access Right Management
Import/export users User quota management Local user access control for CIFS, AFP, FTP, and WebDAV Application access control for Photo Station, Music Station, and Video Station Subfolder permissions support for CIFS/SMB, AFP, FTP, and File Station
myQNAPcloud Service
Private cloud storage and sharing with myQNAPcloud id (QID) Free host name registration (DDNS) Auto router (via UPnP) configuration Web-based file manager with HTTPS 2048-bit encryption Cloudlink for remote access without complicated router setup myQNAPcloud connect for easy VPN connection (Windows VPN utility)
Syncs files among multiple devices with SSL support Selective synchronization for syncing specific folders only Share team folder as a file center for team collaboration Shares files by links via e-mail Policy settings for conflicted files and file type filter support Incremental synchronization for HDD space saving Supports Windows & Mac OS
Web Administration
Personalized desktop Smart toolbar and dashboard for system status - Dynamic DNS (DDNS) - SNMP (v2 & v3) - Resource monitor Network recycle bin for file deletion via CIFS/SMB, AFP and File Station - Automatic cleanup - File type filter Comprehensive logs (events & connection) Syslog client/server Mobile app: Qmanager for remote system monitoring & management
All-in-One Server
File Server
File Sharing across Windows, Mac, and Linux/UNIX Windows ACL Advanced folder permission for CIFS/SMB, AFP, FTP Shared folder aggregation (CIFS/SMB)
FTP Server
FTP over SSL/TLS (Explicit) FXP supported
File Station
Supports ISO Mounting (Up to 256 ISO Files) Support thumbnail display of multimedia files Support share download link and upload link Drag-n-drop Files via Chrome and Firefox Browsers Photo, music, and video preview and playback File Compression and decompression (ZIP and 7z)
Backup Station
Remote replication server (over rsync) Real-time remote replication (RTRR) to another QNAP NAS or FTP server Works as both RTRR server & client with bandwidth control Real-time & scheduled backup Encryption, compression, file filter, and transfer rate limitation Encrypted replication between QNAP NAS servers Desktop backup with QNAP NetBak Replicator for Windows Apple Time Machine backup support Data backup to multiple external storage devices Third party backup software support: Veeam backup & replication, Acronis True Image, Arcserve backup, EMC retrospect, Symantec Backup Exec, etc.
Photo Station
Show photos in thumbnails, list, timeline, or folder view Supports virtual/smart album Tags photos with text, color, and rating Slideshows with background music and different transition effects Animated thumbnails for videos Geotags photos and display them on Google maps Shares slideshows link to social websites or through email Supports Facebook friends login
Music Station
Plays or Shares Music Collections with Web Browser Automatic Classification via Media Library Supported audio format: AIFF, APE, FLAC, M4A, M4A Apple Lossless (ALAC), MP3, Ogg Vorbis, WAV (PCM, LPCM),WMA, WMA PRO, WMA VBR. DRM encryption format is not supported Internet Radio (MP3) Up to 8 Music Alarms
iTunes Server
Audio and Video Sharing for Windows & Mac iTunes
Video Station
Show photos in thumbnails, list, timeline, or folder view Tags videos with text, color, and rating Animated thumbnails for videos Shares video collection link to social websites or through email Display movie information from IMDB
DLNA Server
Supports DLNA/UPnP TVs and Players such as PlayStation 3, and Xbox 360 Supported audio formats: AIFF, APE, DSD (DSF, DFF), FLAC, M4A, M4A Apple Lossless (ALAC), MP3, Ogg Vorbis, WAV (PCM, LPCM), WMA, WMA PRO, and WMA VBR. The DRM encryption format is not supported Supports CUE indexing file for APE, FLAC audio format Video and Audio On-the-fly Transcoding
Transcode Management
Offline video transcoding: 240p, 360p, 480p, 720p, and 1080p resolutions Automatic video transcoding for watched folders
Streams videos, photos and music from NAS to Apple TV via Qfile or QAirPlay's web-based controller
Digital TV Station
DVB-T Digital TV Live View, Recording, and Playback Electronic Programming Guide (EPG) with Scheduled Recording Please be aware that the availability of DVB-T broadcasting and EPG may vary depending on geographic locations.
Download Station
PC-less BT, FTP/FTPS, and HTTP/HTTPS download (up to 500 Tasks) BT download with Magnet Link and PT support Scheduled download and bandwidth control RSS subscription and download (broadcatching) Bulk download with wildcard settings BT search Proxy support for BT download PC utility: Qget for downloads browsing and management Mobile app: Android Qget for downloads browsing and management
Cloud Storage Backup
Amazon S3 Amazon Glacier WebDAV-based cloud storage Microsoft Azure Open Stack Google Cloud Storage
Print Server
Max number of printers: 3 Print job display and management IP-based and domain name-based privilege control
Surveillance Station
Supports over 2,700 IP cameras Includes 2 free camera licenses, up to 8 camera channels via additional license purchase Instant playback to check the recent event Visual aid by e-map Playback and speed control by shuttle bar Video preview on playback timeline Intelligent video analytics (IVA) for advanced video search Surveillance client for Mac Mobile surveillance app: vmobile (iOS and Android) Mobile recording app: vcam (iOS and Android)
Notes Station
Graphical web-based editor for taking notes Integrate with a NAS file system: insert attachment or image from a NAS file system Event calendar and to-do list Image editor Provide Chrome Extension: Notes Station Clipper Clip web page content to your note Mobile app: Qnotes
Signage Station
Support for dynamic content includes video, image, music, and text messages Multi-user collaboration Supports email and social network sharing Supports design software - iArtist Lite for Windows Supports various browser playback (Chrome, Firefox, IE, Safari)
iSCSI Target Multi-LUNs per Target Up to 256 Targets/LUNs Combined Supports LUN Mapping & Masking File-based LUN Online LUN Capacity Expansion iSCSI LUN Backup, One-time Snapshot, and Restore iSCSI Connection and Management by QNAP Finder (Windows) Virtual Disk Drive (via iSCSI Initiator) Max No. of Virtual Disk Drives: 8
VPN Server
Secure remote access: PPTP &OpenVPN VPN services Max number of clients: 15 for PPTP & 15 for OpenVPN
Domain Authentication Integration
Microsoft Active Directory (AD) Domain controller LDAP server, LDAP client Domain users login via CIFS/SMB, AFP, FTP, and File Station
App Center
More than 100 official and community software add-ons
Mobile Apps
Qfile: iOS, Android, and Windows phone Qfile HD: iPad version Qmanager: iOS and Android Qmusic: iOS and Android Qremote: iOS and Android Qget: Android Phone Vmobile: iOS, iPad, and Android
Dimensions & Weight
1.73 x 17.28 x 19.65" / 43.94 x 438.91 x 499.11 mm
16.82 lb / 7.63 kg
Packaging Info
Package Weight
20.0 lb
Box Dimensions (LxWxH)
24.0 x 24.0 x 7.0"
Product Highlights
4 x 3.5" or 2.5" SATA III Drive Bays
1.2 GHz ARM Cortex-A9 Dual Core
Read Speed: up to 148 MB/s
Write Speed: up to 119 MB/s
4 x USB 3.0 Ports & 1 x USB 2.0 Port
2 x Gigabit Ethernet Ports
RAID 0, 1, 5, 6, 10, 5 + spare, JBOD
AES 256-Bit Volume Encryption
Windows, Mac, Linux, and UNIX Compatible


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