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  • 4 x 2.5"/3.5" SATA III Drive Bays
  • 1.7 GHz ARM AL-214 Quad-Core CPU
  • 1GB DDR3 RAM
  • 2 x Gigabit Ethernet Ports
  • 3 x USB 3.2 Gen 1 Ports
  • RAID 0, 1, 5, 6, 10, JBOD, Single
  • Up to 223 MB/s Sequential Read Speeds
  • Up to 212 MB/s Sequential Write Speeds
  • AES 256-Bit Volume Encryption
  • QTS Operating System
  • TS-431K

TS-431K
High-performance quad-core NAS for reliable home and personal cloud storage
​Powered by quad-core 1.7 GHz processor, the TS-431K provides 4 drive bays storage space to securely store your important files and data, while allowing you to easily share files with family and friends. Featuring a compact pure white minimalist design, the TS-431K can easily integrate with any home décor and takes up very little space. The TS-431K comes with lockable drive trays, ensuring the drives will not be accidentally removed or fall out and cause data loss. The TS-431K provides comprehensive local, off-site and cloud backup and secure Snapshot technology to help create a reliable backup and disaster recovery plan. In the event of a system crash or accidental file deletion, you can quickly restore the system to its normal state.
SkyHawk

File Station enables centralized file management on the NAS, connected devices, and connected clouds, making data management more easily, while saving time.

SkyHawk

HBS (Hybrid Backup Sync) can backup and sync your data to other NAS, servers and cloud storage for comprehensive backup and disaster recovery.

SkyHawk

Snapshots fully record system status and data, allowing you to protect files and data from accidental deletion and malware attacks.

SkyHawk

Rich multimedia applications and a wide range of streaming methods, bringing greater multimedia enjoyment.

SkyHawk

Connect to external USB devices such as card readers, printers or uninterruptable power supply through the USB 3.2 Gen 1 port for greater application potential.

SkyHawk

myQNAPcloud service allows you to easily access, manage, and share NAS files via the Internet.

TS-431K
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QNAP
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CPU AnnapurnaLabs, an Amazon company Alpine AL214, 4-core, 1.7GHz
CPU Architecture 32-bit ARM
Wake on LAN (WOL)  
Floating Point Unit  
Encryption Engine  
System Memory 1GB DDR3
Maximum Memory 1GB DDR3
Flash Memory 512 MB (Dual boot OS protection)
Drive Bay 4x 3.5-inch SATA 6Gb/s, 3Gb/s
Drive Compatibility 3.5-inch bays:
3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
Hot-swappable  
SSD Cache Acceleration Support  
Gigabit Ethernet Port (RJ45) 2
Jumbo Frame  
USB 3.2 Gen 1 port 3
Form Factor Tower
LED Indicators Power, Status, LAN, USB, HDD1-4
Buttons Power, Reset, USB Auto Copy
Dimensions (HxWxD) 169 × 160 × 219 mm
Weight (Net) 2.01 kg
Weight (Gross) 3.47 kg
Operating temperature 0 - 40 °C (32°F - 104°F)
Relative Humidity 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply Unit 90W Adapter, 100-240V
Power Consumption: HDD Sleep Mode 11.928 W
Power Consumption: Operating Mode, Typical 26.57 W
Tested with drives fully populated.
Fan 1 x 120mm, 12VDC
Sound Level 21.3 db(A)
System Warning Buzzer
Kensington Security Slot  
Max. Number of Concurrent Connections (CIFS) 400
Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting.
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
Designs and specifications are subject to change without notice.
Supported Client Operating Systems
  1. Apple Mac OS 10.10 or later
  2. Ubuntu 14.04 , CentOS 7, RHEL 6.6, SUSE 12 or later Linux
  3. IBM AIX 7, Solaris 10 or later UNIX
  4. Microsoft Windows 7, 8, and 10
  5. Microsoft Windows Server 2008 R2, 2012, 2012 R2 and 2016, 2019
Show more...
Supported Browsers
  1. Apple Safari 7 or later
  2. Google Chrome
  3. Microsoft Internet Explorer 10 or later
  4. Mozilla Firefox
Supported Languages

Chinese (traditional and simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Thai, and Turkish

Supported File Systems
  1. Internal hard drive (EXT4)
  2. External hard drive (EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT)
    Note: To use exFat you must purchase an exFAT driver license from License Center.
Network & Virtual Switch
  1. TCP/IP: Dual stack (IPv4 and IPv6)
  2. Jumbo frame
  3. Port trunking(Link aggregation)
    • failover
    • Load balancing
  4. DHCP server and client
  5. RADVD
  6. USB Wi-Fi adapter
    Note: This feature does not support ad hoc networks because of security considerations.
  7. Virtual switch
    • Network Address Translation (NAT)
    • Spanning Tree Protocol (STP)
    • Software-Defined Switch mode
  8. Static Route
  9. NCSI (Network Connectivity Status Indicator)
  10. DDNS settings (Customize & Multiple Service )
Show more...
Web Server
  1. HTTP/HTTPS Connections (TLS 1.0/1.1/1.2)
  2. Supports WebDAV Connection
  3. Supports Virtual Host (Max: 32)
  4. Importable SSL Certificate
Security
  1. Network access protection with auto-blocking (SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP)
  2. Host access control for shared folders (CIFS/SMB)
  3. AES 256-bit volume-based encryptions which are validated by FIPS 140-2 CAVP (Cryptographic Algorithm Validation Program)
  4. 256-bit external drive encryption (AES)
  5. Importing of SSL certificates from Let’s Encrypt
  6. Instant alerts through email, SMS, push service, and audio
  7. 2-step verification
Show more...
Storage Management
  1. Supported RAID types: RAID 0, 1, 5, 6, 10, JBOD, Single
  2. RAID Hot Spare and Global Hot Spare
  3. RAID Rebuild Speed Customization
  4. Online RAID capacity expansion
  5. Online RAID level migration
  6. SSD RAID Over-provisioning
    Note: RAID 0 and JBOD Data RAID does not support Over-provisioning.
  7. SSD RAID Performance evaluation (with SSD Profiling Tool)
  8. SSD TRIM for RAID 0,1,10
  9. Bitmap support
  10. Disk auto S.M.A.R.T. data migration
  11. Disk bad block scan and S.M.A.R.T test.
  12. Disk bad block recovery
  13. Disk secure data erase
  14. Ironwolf Health Management
  15. Storage pools
  16. Flexible volumes and LUNs with thin provisioning and space reclaiming
    • If the NAS has less than 4GB RAM, then the maximum volume capacity is 144TB.
    • If the NAS has at least 4GB RAM, then the maximum volume capacity is 250TB.
  17. Online volume expansion
  18. Volume type conversion
  19. Volume shrink
  20. Storage space utilization
  21. Snapshots
    The maximum number of snapshots varies depending on installed memory.
    • Volume and LUN snapshots
    • Snapshot Dashboard
    • Snapshot Manager
    • Snapshot local restore and revert
    • Snapshot Clone
    • Snapshot Replica and Snapshot Vault
    • Snapshot remote restore and revert
    • Unified Snapshot Directory
    • Support for Windows Previous Versions (CIFS/SMB)
  22. Storage expansion using QNAP expansion units
  23. JBOD enclosure roaming
  24. SSD read-only and read-write cache
  25. SSD write-only cache
    Note: SSD Cache supports Single, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 configuration. The maximum cache size depends on installed memory. The maximum cache size is 1 TB.
Show more...
iSCSI (IP SAN)
  1. iSCSI targets with multiple LUNs per target
    Note: The maximum number of targets+LUN is 256.
  2. LUN mapping (LUN can be moved between iSCSI and FC if supported)
  3. LUN masking
  4. Online LUN capacity expansion
  5. SPC-3 persistent reservation
  6. MPIO & MC/S
  7. iSCSI LUN backup, one-time snapshot, and restoration
  8. Virtual disks using iSCSI initiator
    Note: The maximum number of virtual disks is eight.
  9. Stack chaining master
Show more...
Notification Center
  1. Added support for sending notifications via SMS center (SMSC) or providers, including Nexmo, Twilio, and Clickatell.
  2. Added Outlook as an SMTP service option.
  3. Added support for sending notifications via instant messaging applications, including Skype and Facebook Messenger.
  4. Added support for Overview and History in Notification Center.
  5. Added support for 23 languages for notification messages.
  6. Added support for creating custom notification rules to specify notification criteria, including application categories, severity levels, and keywords.
  7. Delivery method and message recipient settings are now more flexible.
  8. Added support for creating multiple notification rules at the same time.
  9. Added support for sending notifications for a single system event.
Show more...
Power Management
  1. Wake-on-LAN (WoL)
  2. Standby mode for internal drives
  3. Scheduled power on and off
  4. USB and network UPS support with SNMP management
Access Rights Management
  1. Multiple user creation
  2. User data importing and exporting
  3. User quota management
  4. Local user access control (AFP, CIFS/SMB, FTP, and WebDAV)
  5. Application access control (File Station, Music Station, Photo Station, and Video Station)
  6. Subfolder permissions (AFP, CIFS/SMB, FTP, and File Station)
Show more...
Domain Authentication
  1. Microsoft Active Directory (AD) and domain controller support
  2. LDAP server and client
  3. Domain user login (AFP, CIFS/SMB, FTP, and File Station)
myQNAPcloud
  1. Free host name registration (DDNS)
  2. Optional myQNAPcloud SSL certificates (DDNS)
  3. Auto router configuration using UPnP
  4. Web-based file manager with HTTPS 2048-bit encryption
  5. myQNAPcloud Link for remote access without complex router setup
Show more...
Qsync
  1. File syncing across multiple devices with SSL secure connection
  2. Selective synchronization for specific folders or subfolders
  3. Team folders as file center for better collaboration
  4. File sharing using email links
  5. Policy settings for conflicting files and file type filter
  6. Version control for a maximum of 64 versions
  7. Unified privilege and configuration management
  8. Central configuration mode
  9. Remote erase and restore
  10. Qsync client supported platforms: Windows, Mac, Ubuntu, Android and iOS
Show more...
Resource Monitor
  1. Monitoring of NAS system resources such as CPU, memory and network
  2. Monitoring of NAS storage resources such as volumes, RAID, and disk activity
  3. Monitoring of NAS application resource use
  4. Creation of extra swap space when SSDs are installed
Helpdesk
  1. Reporting of issues to the QNAP support team, with automatic collection of system information
  2. Remote connection between QNAP support engineers and NAS for issue resolution (with user permission)
Web Desktop Administration
  1. Multi-window, multitasking system management
  2. Smart toolbar and dashboard for system status display
  3. SNMP versions 2 and 3
  4. Resource monitor
  5. Network recycle bin
    • Recover files deleted using AFP, CIFS/SMB, and File Station
    • Automatic cleanup
    • File type filter
  6. Comprehensive logs (events and connections)
  7. Syslog server and client
  8. Backup and restoration of system settings
  9. Qmanager: Mobile application for remote system monitoring and management
  10. Qboost
Show more...
File Server
  1. File sharing across Windows, Mac, and Linux/UNIX
  2. Microsoft networking (CIFS/SMB)
  3. Apple networking (AFP)
  4. NFS version 3/4 services
  5. Windows ACL (CIFS/SMB)
  6. Advanced folder permissions (AFP, CIFS/SMB, and FTP)
  7. Shared folder aggregation (CIFS/SMB)
Show more...
FTP Server
  1. FTP, SFTP and TFTP protocols
  2. FTP over SSL/TLS (explicit FTPS)
  3. FXP support
File Station
  1. Integrate with HybridMount which supports File Cloud Gateway and File Station Mount mode. File Station Mount mode supports:
    • Cloud drive mounting for Google Drive, Dropbox, Microsoft OneDrive, Microsoft OneDrive for Business, HiDrive, Amazon Cloud Drive, Yandex Disk and Box
    • Remote shared folder mounting (CIFS/SMB, FTP, and WebDAV)
  2. Restore QDFF files and folders with HBS 3
  3. Document viewing using Office Online, Google Docs, and Chrome extension
  4. Microsoft Office file editing using Google Docs, Sheets, and Slides
  5. ISO file mounting (maximum: 256 ISO files)
  6. Mount smart phones as external storage
  7. Read access for compatible optical disc drives
  8. Read access for compatible smartphones (MTP)
  9. Download and upload link sharing
  10. File dragging and dropping (Chrome and Firefox)
  11. File compression (ZIP and 7z)
  12. Download link creation and sending for publicly shared files, with expiration date and password protection
  13. Subtitle display (SRT and UTF-8)
  14. Slideshow playback in media viewer
  15. Convert image files to pdf by “Image2PDF” integration
  16. Qfile: Mobile app for file browsing and management
Show more...
HBS (Hybrid Backup Sync)
  1. Cloud storage backup to Amazon Glacier, Amazon S3, Azure Storage, Google Cloud Storage, HKT Object Storage, OpenStack Swift, WebDAV
  2. Cloud storage syncing with Alibaba Cloud, Amazon Drive, Amazon S3, BackBlaze B2, Box, Dropbox, OneDrive, Google Drive, HiDrive, hubiC, OneDrive, OneDrive For Business, ShareFile, Yandex Disk
  3. RTRR server & client with bandwidth control
  4. Rsync server with download bandwidth control
  5. Remote server syncing (CIFS/SMB, FTP, Rsync, and RTRR)
  6. Scheduled backup to local and remote storage spaces
  7. Backup versioning
  8. Encryption, compression, and file filters
  9. Centralized management for backup, restoration, and sync jobs
  10. Support for Apple Time Machine
  11. Data backup to multiple external storage devices
  12. Desktop backup with QNAP NetBak Replicator for Windows
  13. Support for the following third-party backup software: Veeam Backup & Replication, Acronis True Image, Arcserve Backup, Retrospect, Nakivo Backup & Replication, and Veritas Backup Exec
Show more...
Multimedia Console
  1. Integrating indexing, thumbnail generation, and content management.
  2. New content management design, configuring content sources for QTS multimedia applications.
  3. View the status of multimedia apps and services all on the same screen.
QuMagie
  1. Browse photos in timeline view or folder view.
  2. Virtual albums and smart albums.
  3. AI-assisted photo management, classifying people, things, places, etc.
Photo Station
  1. Photo organization by thumbnail, list, timeline, or folder
  2. Virtual and smart albums
  3. Validity control for album sharing
  4. Photo tagging with text, colors, and ratings
  5. Slideshows with background music and transition effects
  6. Album configuration backup and restoration
  7. Advanced folder permissions
  8. Support for domain users
  9. Qphoto: Mobile application for online browsing and sharing
Show more...
Music Station
  1. Music playing and sharing through web browsers
  2. Music streaming to multiple devices
  3. Changing of album covers through Google search or by uploading photos
  4. Internet radio (MP3)
  5. Eight music alarms
  6. Switching between spotlight mode and manage mode
  7. Advanced search
  8. Scrolling lyrics
  9. Qmusic: Mobile application for music streaming and management
Show more...
Video Station
  1. Video organization by thumbnail, list, timeline, or folder
  2. Virtual and smart collections
  3. Video tagging with text, colors, and ratings
  4. Video link sharing through social media and email
  5. Movie information and poster display from Internet sources or user-uploaded files
  6. Subtitle display (SRT, ASS, SSA)
  7. Subtitle search and downloading
  8. Subtitle file importing
  9. Subtitle display style adjustment
  10. Playback speed adjustment
  11. Direct video streaming for certain file formats
  12. Facebook login
  13. Advanced folder permissions
  14. Support for LDAP users
  15. Video uploading to YouTube and Youku
  16. Multi-zone video display
  17. Qvideo: Mobile application for online video browsing and management
Show more...
Container Station
  1. Support for LXC and Docker
  2. Application downloading from the built-in Docker Hub Registry
  3. One-click installation
  4. Container importing and exporting
  5. Console mode
    Three networking modes (Note: Docker containers support Bridge, NAT, and Host mode. Linux containers (LXC) support only NAT.)
  6. Auto-start containers
  7. Docker certificate downloading
  8. Private registry addition
  9. Application repository for switching to any repository on GitHub.com
Show more...
Surveillance Station
  1. Support for up to 5,000 IP cameras
  2. 2 free camera licenses
    Note: Surveillance Station supports a maximum of 16 camera channels. To add more camera channels, you need to purchase licenses from the QNAP License Store.
  3. Instant playback for recent surveillance events
  4. Visual options for e-maps
  5. Playback speed control
  6. Supporting for displaying preview snapshots on the timeline
  7. Intelligent video analytics (IVA) for advanced video searching
  8. Surveillance client designed for macOS
  9. Mobile surveillance application (Vmobile) for iOS and Android
  10. Mobile recording application (Vcam) for iOS and Android
Show more...
QVPN Service
  1. VPN server
    • Friendly graphical overview page.
    • Secure remote access with PPTP, L2TP/IPSec, OpenVPN, QBelt(QNAP proprietary) protocol.
    • Support for a maximum of 100 clients.
    • Support public/ NAS default/ manually DNS server.
    • Support manually assign/auto detect/none outgoing network interface.
    • Support privilege settings for domain/Local users.
  2. VPN client
    • Support PPTP, L2TP/IPSec, OpenVPN, Qbelt (QNAP proprietary) protocol.
    • Support using VPN as a NAS default gateway.
    • Support connection log check.
  3. Support utility and Mobile apps for Windows, Mac, iOS, Android.
Show more...
DLNA Server
  1. Support for DLNA/UPnP TVs and players such as PlayStation 4 and Xbox One
  2. Support for CUE indexing file for APE and FLAC
Qfinder Pro
  1. QNAP NAS location on the same local network
  2. NAS shared folder mounting
  3. Basic setting configuration (firmware, SMTP server, and network settings)
  4. Storage Plug & Connect (Windows only)
    • Creation and mapping of NAS shared folders
    • Creation of and connection to iSCSI targets and LUNs
  5. Media upload (Windows only)
    • Media file upload to the NAS
    • Automatic creation of thumbnails or transcoding of videos using the computer
Show more...
App Center
  1. Official and community software add-ons
  2. Automatic updates and notifications for new versions
  3. Repository for imported third-party content
  4. User-specified volume for storing applications
Chromecast
  1. Video, photo and music streaming to Apple TV (via Qmedia) or Chromecast using the following:
    • NAS applications: File Station, Music Station, Photo Station, and Video Station
    • Mobile applications: Qfile, Qmusic, Qphoto, and Qvideo

Note: You must install the Media Streaming add-on from App Center.

Download Station
  1. PC-less downloads (BitTorrent, FlashGet, FTP/FTPS, HTTP/HTTPS, QQDL, and Thunder)
    Note:
    • The application supports a maximum of 500 tasks.
    • The maximum number of concurrent downloads is 30 (10 BT/PT, 10 HTTP, 10 FTP)
  2. BitTorrent: Support for search, magnet links, private trackers, and proxy
  3. Scheduled download and bandwidth control
  4. RSS subscription and download (broadcatching)
  5. Support for add-ons that extend download functionality
  6. Qget: Mobile application for download browsing and management
Show more...
Qcontactz
  1. One-way scheduled sync of contacts from multiple Google accounts
  2. Contact importing from CSV or vCard 3.0 files
  3. Contact exporting to CSV or vCard 3.0 files
  4. Duplicate contact searching and merging
  5. Contact management: Groups, favorites, lock, search, delete and restore
  6. Support for Android and iOS
Show more...
IFTTT Agent
  1. Daily task automation
  2. Social media data archiving
  3. File synchronization between the NAS and various cloud services
  4. System event notifications on Line, Skype, Gmail, and mobile phones
  5. Music playback on Music Station using Amazon Echo voice commands
  6. Usage of motion detection sensors as trigger for camera recording on Surveillance Station
Show more...
Qmiix Agent:
  1. File synchronization between the NAS and various cloud services
  2. View miixes made using the Qmiix web portal that include triggers and actions involving QNAP apps.
  3. Create miixes for web-based and NAS-related apps.
  4. Create miixes on the Qmiix web portal that include File Station, a QNAP app
  5. System event notifications on Line, Skype, Gmail, and mobile phones
Show more...
Security Counselor
  1. Multiple Security Policies (Basic/Intermediate/Advanced/Custom).
  2. Checks NAS settings for security weaknesses.
  3. Integrates with existing anti-virus services.
  4. Integrates with existing anti-malware services.
  5. Integrates with the Security Advisory service.
Show more...
Malware Remover

Detects and removes malware from your QNAP NAS.

Note: To ensure the security of your NAS, update this app when new versions become available.

General Notes
  1. Designs and specifications are subject to change without notice.
  2. Some features may vary by model.
  3. QTS does not support DRM content and some IPv6 services.
  4. Some data encryption features may be unavailable because of country-specific legislative restrictions.
TS-431K
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QNAP
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