TS-431U-US - 4-bay 1U iSCSI NAS, Hot-swappable
by QNAP

• Single Disk, JBOD, RAID 0, 1, 5, 6, 10, 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

• 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

• Google Chrome
• Microsoft Internet Explorer 10+
• Mozilla Firefox
• Apple Safari

• 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

• 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)

• Internal hard drive: EXT4
• External hard drive: EXT4, EXT3, NTFS, FAT32, HFS+

• 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

• 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

• 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

• 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

• File Sharing across Windows, Mac, and Linux/UNIX
• Windows ACL
• Advanced folder permission for CIFS/SMB, AFP, FTP
• Shared folder aggregation (CIFS/SMB)

• 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

• FTP over SSL/TLS (Explicit)
• FXP supported

• Amazon S3
• Amazon Glacier
• WebDAV-based cloud storage
• Microsoft Azure
• Open Stack
• Google Cloud Storage

• 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)

• Max number of printers: 3
• Print job display and management
• IP-based and domain name-based privilege control

• 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.

• 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)

• 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

• Graphical web-based editor for taking notes
• Integrate with NAS file system: insert attachment or image from 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

• 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

• Support dynamic content includes video, image, music, and text message
• Multi-user collaboration
• Support email and social network sharing
• Support design software - iArtist Lite for Windows®
• Support various browser playback (Chrome, Firefox, IE, Safari)

Audio and Video Sharing for Windows & Mac iTunes

• 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

• 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

• Secure remote access: PPTP &OpenVPN VPN services
• Max number of clients: 15 for PPTP & 15 for OpenVPN

• Microsoft Active Directory (AD)
• Domain controller
• LDAP server, LDAP client
• Domain users login via CIFS/SMB, AFP, FTP, and File Station

• Qfile: iOS, Android Phone, window phone
• Qfile HD: iPad version
• Qmanager: iOS, Android Phone
• Qmusic:  iOS, Android Phone
• Qremote:  iOS, Android Phone
• Qget: Android Phone
• Vmobile: iOS, iPad, Android Phone