QNAP TS-451D2-2G 4-Bay NAS Intel Celeron Gemini Lake J4025 dual-core 2.0GHz (burst up to 2.9GHz), 2GB DDR4 SODIMM RAM (max 8GB) 2xGbE, 4K HDMI v2.0,

QNAP TS-451D2-2G 4-Bay NAS Intel Celeron Gemini Lake J4025 dual-core 2.0GHz (burst up to 2.9GHz), 2GB DDR4 SODIMM RAM (max 8GB) 2xGbE, 4K HDMI v2.0,
PB Tech price: PB Tech price:
$729 56  +GST $838 99  inc GST

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QNAP TS-451D2-2G 4-Bay NAS Intel Celeron Gemini Lake J4025 dual-core 2.0GHz (burst up to 2.9GHz), 2GB DDR4 SODIMM RAM (max 8GB) 2xGbE, 4K HDMI v2.0,

Part #: NASQNP70149
PB Tech price: PB Tech price:
$729 56 $838 99
 +GST  inc GST

Click & Collect: Click & Collect unavailable
Delivery: Order now and it ships on 25/10/2021 When will I receive it?
Due to Alert Level 3, Auckland stores are
open for Click & Collect only

Six easy payments of $144.03 per week*

Laybuy lets you spread the cost of your purchase over 6, interest-free, weekly payments.

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*Repayments shown above are indicative only and may vary. Ts and Cs and lending criteria apply.
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Five easy payments of $172.83 per fortnight*

humm lets you spread the cost of your purchase over 5 or 10 interest free payments.

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If you do not have a humm account you will be able to create one at checkout.

*Repayments shown above are indicative only and may vary. Ts and Cs and lending criteria apply.
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Finance from $7.89 per week*

Get what you want at a price you can afford. Choose a finance term below to see the weekly repayment amount and apply online during checkout or in-store.

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No payments or interest for 12 months available*

Q Card / Mastercard is your perfect shopping partner, combining the benefits of a credit card with the added ability to access a range of interest-free deals and payment holidays.

Learn more about Q Mastercard, apply online for one now, or email to chat with our finance team.

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  • Brand: QNAP
  • MPN: TS-451D2-2G
  • Part #: NASQNP70149
  • UPC:
  • Number of Bays: 4 Bays
  • Hard Drives Installed: None Included
  • Form Factor: Tower
  • Number of Cores: 2
  • Processor Speed: 2000Mhz
  • Memory Size: 2GB
  • 1Gb RJ45 Ports: 2 Ports
  • 10Gb RJ45 Ports: None
  • View more


QNAP TS-451D2-2G 4-Bay NAS

- Celeron J4025 2C 2.0GHz, 2GB RAM, 2x GbE LAN, HDMI

Dual-core NAS with high-efficiency file management, data protection and HDMI output

The 4-bay TS-451D2 provides high storage potential for home and small business users to store, share, and back up files. Business users can leverage its dual-core Intel processor to enable seamless multi-user on-premises/remote access to work files, while home users can enjoy a high-quality multimedia experience with both streaming and direct 4K HDMI 2.0 output. Cloud Storage Gateways allow you to leverage your existing cloud storage to deploy a hybrid-cloud solution, while a built-in App Center provides a wide range of applications to add additional functionality to the TS-451D2.


Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore previously-recorded data.


HBS provides comprehensive backup and data recovery; QuDedup deduplicates data at the source to reduce storage usage, bandwidth usage, and backup time.


4K media playback and real-time transcoding; directly watch videos on a TV via HDMI output or streaming app.


Cloud storage gateways leverage cloud services to realize hybrid cloud structure and ensure low-latency access to clouds.


Host virtual machines and containers to run various applications on the TS-451D2.


A secure private cloud that supports account protection, IP blocking, 2-step verification, encryption, and more.


Dual-core 2.0 GHz (burst up to 2.9 GHz) with AES-NI encryption acceleration

The TS-451D2 is powered by an Intel® Celeron® J4025 dual-core 2.0 GHz processor (burst up to 2.9 GHz), supports up to 8 GB DDR4 memory, and is compatible with SATA 6 Gb/s drives. With Intel® AES-NI encryption, the TS-451D2 secures data without impacting performance. The TS-451D2 also features four USB 3.2 Gen1 ports (including one USB one-touch copy button) and two Gigabit Ethernet ports for greater connectivity to help streamline your workflows.

Tested in QNAP Labs. Figures may vary by environment.

GbE Transfer
Test Environment:
NAS: TS-451D2-4G, QTS 4.4.3, 4 x Samsung 850 Pro 512GB SSDs, RAID 5, thick volume
Client PC: Windows 10 Pro, Intel Core i7-6700 3.4 GHz, 32GB RAM, 10GB file transfer
IOmeter: RAM*4, 30-sec ramp up time, 3-min seq. run time, 2 workers, 64-outstanding

TS-451D2 with QNA-UC5G1T Adapter
Test Environment:
NAS: TS-451D2-4G, QTS 4.4.3, 4 x Samsung 850 Pro 512GB SSDs, RAID 5, thick volume
Client PC: Windows 10 Pro, Intel Core i7-6700 3.4 GHz, 32GB RAM, 10GB file transfer


A secure backup center with snapshot protection

Windows® and Mac® backup

Use the license-free QNAP NetBak Replicator utility to back up and restore files from Windows® computers. Time Machine® is supported for backing up Mac® computers.

Snapshots for Volume & LUN

Snapshots are essential for NAS data protection, and their block-level feature makes it a dependable data protection method in the face of growing ransomware threats.


Multi-point file backup, access, and sync

The TS-451D2 centrally stores data and files, and supports common file sharing protocols, including SMB/CIFS, AFP and NFS for Windows®, Mac®, and Linux®/UNIX® devices. Coupled with Qsync (a utility that transforms a QNAP NAS into a secure, high-capacity data center for file synchronization), any file uploaded to the TS-451D2 becomes available for all connected devices (such as computers, laptops, and mobile devices). Hybrid Backup Sync helps you easily backup or synchronize data on the TS-451D2 to another QNAP NAS, remote servers, or cloud storage for disaster recovery. Additionally, QuDedup technology greatly improves the efficiency of multi-version backup to the destination storage, while optimizing storage utilization. You can install the QuDedup Extract Tool on your computer and restore deduplicated files to their normal status.


Enjoy a high-quality multimedia experience


Seamless integration with cloud data

The TS-451D2 can be easily integrated with mainstream cloud services. By deploying cloud storage gateways and enabling local caching on the TS-451D2, you can seamlessly use the cloud for storage, backup, and data recovery with low-latency access, providing an innovative hybrid cloud experience.


- HybridMount file-based cloud gateway

Flexibly expand your storage capacity by connecting to cloud storage. You can leverage QTS apps to manage and edit your cloud files or multimedia files. HybridMount is ideal for file server online collaboration and file-level data analysis.

- VJBOD Cloud block-based cloud gateway

VJBOD Cloud supports streamlined NAS backup to object cloud storage. The block-based data transmission uploads random data and large files to the cloud in blocks, and only transmits block-based volume or LUN changes (such as addition, modification, or deletion). This is ideal for enterprise-level applications with large file transfer requirements, such as databases, VM volumes, and videos.


Directly host virtual machines and containers

Virtualization Station and Container Station provide comprehensive virtualization support, and the Network & Virtual Switch allows you to allocate physical network resources to virtual machines, containers, and the NAS to simplify network deployment.

Virtualization Station

Run Windows®, Linux®, UNIX®, and Android™ virtual machines and access them via a web browser or Virtual Network Computing (VNC).

Container Station

Experience LXC and Docker® lightweight virtualization technologies, download apps from the built-in Docker Hub Registry®, import and export containers, and create abundant microservices.


Easy and secure remote connection with myQNAPcloud

myQNAPcloud allows you to remain connected to your TS-451D2 using a unique domain name. No complex routing or configuration is required, and myQNAPcloud strengthens SSL Certificate keys to 2048-bits to enable secure remote access, management, and sharing files and services on your TS-451D2.


Safeguard your environment with QVR Pro

QVR Pro is a modern NAS-based surveillance solution that simplifies camera management, storage space allocation, camera live view, and playback. Dedicated storage space for surveillance data can be configured on the TS-451D2 to optimize system performance, and surveillance feeds can be monitored at any time using the QVR Pro Client mobile app. Budget-constrained users can even use USB webcams as network cameras by using QVR Pro with the QUSBCam2 app.


Flexible and economical storage expansion

QNAP provides several ways to expand the storage capacity of your TS-451D2 to accommodate data and business growth.

Upgrade RAID Capacity

Hot-swap lower-capacity drives with larger-capacity drives to expand your NAS capacity so it can grow with your business.

Attach Expansion Enclosures

Connect two TR-004 RAID expansion enclosures, or an 8-bay TL-D800C USB 3.2 Gen 2 JBOD and use the Storage & Snapshots Manager to handle NAS capacity expansion.

Migrate to a New NAS

Install your NAS hard drives into a larger QNAP NAS and retain all your existing data and configurations.


Extend your hardware warranty up to 5 years

The TS-451D2 comes with a 2-year warranty as standard, with the option to purchase a warranty extension for up to 5 years coverage.




 Intel® Celeron® J4025 dual-core 2.0 GHz processor (burst up to 2.9 GHz)

CPU Architecture 

64-bit x86

Maximum Memory 

8 GB (2 x 4GB)

Memory Slot 

For dual-DIMM configuration, you must use a pair of identical DDR4 modules.

Flash Memory 

4GB (Dual boot OS protection)

Drive Bay 

4 x 3.5-inch SATA 6Gb/s, 3Gb/s
The system is shipped without HDD.
For the HDD compatibility list, please visit

Drive Compatibility 

3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives



SD Cache Acceleration Support 


Gigabit Ethernet Port (RJ45) 


Wake on LAN (WOL) 


Graphic Processors 

Intel® HD Graphics 600

Floating Point Unit 


Encryption Engine 

Yes (AES-NI)
Hardware-accelerated Transcoding 

System Memory 

2 GB SO-DIMM DDR4 (1 x 2 GB)

Jumbo Frame 


USB 3.2 Gen 1 port



Output 1, HDMI 2.0 (up to 4096 x 2160 @ 60Hz)

Form Factor 


LED Indicators 

Power/Status, LAN, USB, HDD1-4


Power, USB copy, Reset

Dimensions (HxWxD) 

165.3 × 160 × 219.4 mm

Weight (Net) 

2.09 kg

Weight (Gross) 

3.02 kg

Operating temperature

0 - 40 °C (32°F - 104°F)

Storage Temperature 

-20 - 70°C (-4°F - 158°F)

Relative Humidity 

5-95% RH non-condensing, wet bulb: 27°C (80.6°F)

Power Supply Unit 

External Power Adapter, 90W, AC 100-240 V


1 x 120mm, 12VDC

Sound Level 

18.5 db(A)

System Warning 


Kensington Security Slot 



Operating System 

Embedded Linux

Supported Client Operating Systems 

Apple Mac OS 10.10 or later
Ubuntu 14.04, CentOS 7, RHEL 6.6, SUSE 12 or later Linux
IBM AIX 7, Solaris 10 or later UNIX
Microsoft Windows 7, 8, and 10
Microsoft Windows Server 2008 R2, 2012, 2012 R2 and 2016, 2019

Supported Browsers 

Apple Safari 7 or later
Google Chrome
Microsoft Internet Explorer 10 or later
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 

Internal hard drive (EXT4)
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 

TCP/IP: Dual stack (IPv4 and IPv6)
Jumbo frame
Port trunking (Link aggregation)
Load balancing
DHCP server and client
USB Wi-Fi adapter
Note: This feature does not support ad hoc networks because of security considerations.
Virtual switch
Network Address Translation (NAT)
Spanning Tree Protocol (STP)
Software-defined Switch mode
Static Route
NCSI (Network Connectivity Status Indicator)
DDNS settings (Customize & Multiple Service)

Web Server 

HTTP/HTTPS Connections (TLS 1.0/1.1/1.2)
Supports WebDAV Connection
Supports Virtual Host (Max: 32)
Importable SSL Certificate


Network access protection with auto-blocking (SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP)
Host access control for shared folders (CIFS/SMB)
AES 256-bit folder-based and volume-based encryptions which are validated by FIPS 140-2 CAVP (Cryptographic Algorithm Validation Program)
256-bit external drive encryption (AES)
Importing of SSL certificates from Let's Encrypt
Instant alerts through email, SMS, push service, audio
2-step verification

Storage Management 

Supported RAID types: RAID 0, 1, 5, 6, 10, JBOD, Single
RAID Hot Spare and Global Hot Spare
RAID Rebuild Speed Customization
Online RAID capacity expansion
Online RAID level migration
SSD RAID Over-provisioning
Note: RAID 0 and JBOD Data RAID does not support Over-provisioning.
SSD RAID Performance evaluation (with SSD Profiling Tool)
SSD TRIM for RAID 0,1,10
Bitmap support
Disk auto S.M.A.R.T. data migration
Disk bad block scan and S.M.A.R.T test.
Disk bad block recovery
Disk secure data erase
Ironwolf Health Management
Storage pools
Qtier™ Data Tiering Technology
Automatic or scheduled data tiering
IO-aware auto tiering
Shared folder tiering on demand
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.
Online volume expansion
Volume type conversion
Volume shrink
Storage space utilization
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)
Storage expansion using QNAP expansion units
JBOD enclosure roaming
SSD read-only and read-write cache
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.


iSCSI targets with multiple LUNs per target
Note: The maximum number of targets + LUN is 256.
LUN mapping
LUN masking
Online LUN capacity expansion
SPC-3 persistent reservation
iSCSI LUN backup, one-time snapshot, and restoration
Virtual disks using iSCSI initiator
Note: The maximum number of virtual disks is eight.
Stack chaining master

VJBOD Cloud 

VJBOD Cloud is a block-based storage gateway solution that allows you to backup the storage space (LUN/Volume) on your local NAS using cloud space from cloud services providers such as Amazon, Azure, and Google Cloud.
Supports one-to-one pairing between cloud volumes/LUNs and local stored spaces.
Supports Amazon S3 Azure, BackBlaze, HuaWei Cloud, Alibaba Cloud, HKT, Google Cloud, OpenStack, RackSpace, Wasabi cloud, IBM cloud object storage service.
Local storage mode: data can be stored on the NAS and the data can be backed up to the cloud.
20 recovery points for recovering volumes/LUNs.

Notification Center 

Added support for sending notifications via SMS center (SMSC) or providers, including Nexmo, Twilio, and Clickatell.
Added Outlook as an SMTP service option.
Added support for sending notifications via instant messaging applications, including Skype and Facebook Messenger.
Added support for Overview and History in Notification Center.
Added support for 23 languages for notification messages.
Added support for creating custom notification rules to specify notification criteria, including application categories, severity levels, and keywords.
Delivery method and message recipient settings are now more flexible.
Added support for creating multiple notification rules at the same time.
Added support for sending notifications for a single system event.

Power Management 

Wake-on-LAN (WoL)
Standby mode for internal drives
Scheduled power on and off
Automatic power on after power recovery
USB and network UPS support with SNMP management

Access Rights Management 

Multiple user creation
User data importing and exporting
User quota management
Local user access control (AFP, CIFS/SMB, FTP, and WebDAV)
Application access control (File Station, Music Station, Photo Station, and Video Station)
Subfolder permissions (AFP, CIFS/SMB, FTP, and File Station)

Domain Authentication 

Microsoft Active Directory (AD) and domain controller support
LDAP server and client
Domain user login (AFP, CIFS/SMB, FTP, and File Station)


Free host name registration (DDNS)
Optional myQNAPcloud SSL certificates (DDNS)
Auto router configuration using UPnP
Web-based file manager with HTTPS 2048-bit encryption
myQNAPcloud Link for remote access without complex router setup


File syncing across multiple devices with SSL secure connection
Selective synchronization for specific folders or subfolders
Team folders as file center for better collaboration
File sharing using email links
Policy settings for conflicting files and file type filter
Version control for a maximum of 64 versions
Unified privilege and configuration management
Central configuration mode
Remote erase and restore
Qsync client supported platforms: Windows, Mac, Ubuntu, Android and iOS

Resource Monitor 

Monitoring of NAS system resources such as CPU, memory and network
Monitoring of NAS storage resources such as volumes, RAID, and disk activity
Monitoring of NAS application resource use
Creation of extra swap space when SSDs are installed


Reporting of issues to the QNAP support team, with automatic collection of system information
Remote connection between QNAP support engineers and NAS for issue resolution (with user permission)

Web Desktop Administration 

Multi-window, multitasking system management
Smart toolbar and dashboard for system status display
SNMP versions 2 and 3
Resource monitor
Network recycle bin
Recover files deleted using AFP, CIFS/SMB, and File Station
Automatic cleanup
File type filter
Comprehensive logs (events and connections)
Syslog server and client
Backup and restoration of system settings
Qmanager: Mobile application for remote system monitoring and management

File Server 

File sharing across Windows, Mac, and Linux/UNIX
Microsoft networking (CIFS/SMB)
Apple networking (AFP)
NFS version 3/4 services
Windows ACL (CIFS/SMB)
Advanced folder permissions (AFP, CIFS/SMB, and FTP)
Shared folder aggregation (CIFS/SMB)

FTP Server 

FTP, SFTP and TFTP protocols
FTP over SSL/TLS (explicit FTPS)
FXP support

File Station 

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)
Restore QDFF files and folders with HBS 3
Document viewing using Office Online, Google Docs, and Chrome extension
Microsoft Office file editing using Google Docs, Sheets, and Slides
ISO file mounting (maximum: 256 ISO files)
Mount smart phones as external storage
Read access for compatible optical disc drives
Read access for compatible smartphones (MTP)
Download and upload link sharing
File dragging and dropping (Chrome and Firefox)
Photos, video, and music preview and playback with hardware-accelerated transcoding
File compression (ZIP and 7z)
Download link creation and sending for publicly shared files, with expiration date and password protection
Subtitle display (SRT and UTF-8)
Video seeking during on-the-fly transcoding video playback
Slideshow playback in media viewer
Convert image files to pdf by "Image2PDF" integration
Qfile: Mobile app for file browsing and management


Auto filing
Recipe function
Archiving through iSCSI, USB, DVD and remote NAS
Advanced settings
Source File Filters
File Editing
File deletion
Data integrity check
File conflict policy

HBS (Hybrid Backup Sync) 

Cloud storage backup to Amazon Glacier, Amazon S3, Azure Storage, Google Cloud Storage, HKT Object Storage, OpenStack Swift, WebDAV
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
RTRR server & client with bandwidth control
Rsync server with download bandwidth control
Remote server syncing (CIFS/SMB, FTP, Rsync, and RTRR)
Scheduled backup to local and remote storage spaces
Backup versioning
Encryption, compression, and file filters
Centralized management for backup, restoration, and sync jobs
Support for Apple Time Machine
Data backup to multiple external storage devices
Desktop backup with QNAP NetBak Replicator for Windows
Support for the following third-party backup software: Veeam Backup & Replication, Acronis True Image, Arcserve Backup, Retrospect, Nakivo Backup & Replication, and Veritas Backup Exec

Multimedia Console 

Integrating indexing, transcoding, thumbnail generation, and content management.
New content management design, configuring content sources for QTS multimedia applications.
View the status of multimedia apps and services all on the same screen.
Video transcoding (240p, 360p, 480p, 720p and 1080p resolution)
Video2Audio transcoding
Automatic video transcoding for watched folders
Hardware-accelerated transcoding
Embed subtitles into videos for background transcoding


Browse photos in timeline view or folder view.
Virtual albums and smart albums.
AI-assisted photo management, classifying people, things, places, etc.

Photo Station 

Photo organization by thumbnail, list, timeline, or folder
Virtual and smart albums
Validity control for album sharing
Photo tagging with text, colors, and ratings
Slideshows with background music and transition effects
Album configuration backup and restoration
Advanced folder permissions
Support for domain users
Qphoto: Mobile application for online browsing and sharing

Music Station 

Music playing and sharing through web browsers
Music streaming to multiple devices
Changing of album covers through Google search or by uploading photos
Internet radio (MP3)
Eight music alarms
Switching between spotlight mode and manage mode
Advanced search
Scrolling lyrics
Qmusic: Mobile application for music streaming and management

Video Station 

Video organization by thumbnail, list, timeline, or folder
Virtual and smart collections
Video tagging with text, colors, and ratings
Video link sharing through social media and email
Movie information and poster display from Internet sources or user-uploaded files
Subtitle display (SRT, ASS, SSA)
Subtitle search and downloading
Subtitle file importing
Subtitle display style adjustment
Playback speed adjustment
Direct video streaming for certain file formats
Facebook login
Advanced folder permissions
Support for LDAP users
Video uploading to YouTube and Youku
Multi-zone video display
Video-seeking support for video playback during on-the-fly transcoding
Qvideo: Mobile application for online video browsing and management

Virtualization Station 

Virtual machine creation (Windows, Linux, Unix, and Android)
Virtual machine importing, exporting, cloning, snapshot capturing, backup, and restoration
Console display using HDMI output (QVM)
HTML5-based shared remote console
Various networking modes using virtual switches

Container Station 

Support for LXC and Docker
Application downloading from the built-in Docker Hub Registry
One-click installation
Container importing and exporting
Console mode
Three networking modes (Note: Docker containers support Bridge, NAT, and Host mode. Linux containers (LXC) support only NAT.)
Auto-start containers
Docker certificate downloading
Private registry addition
Application repository for switching to any repository on


Full-text search
Data distribution using a bar chart
Previews for photos, music, videos, PDFs, Gmail, and others
Advanced search operators and search scope
Customized search filters with included or excluded conditions
Related files suggestion in Viewer
Chrome, Firefox and Safari extension

QVR Pro 

Free 8 built-in camera channels for all models
Expandable up to 128 camera channels
Note: The maximum number of channels supported varies by NAS model, network configuration, and camera settings. For more information, visit
Support for using QVR Pro as the motion detector
Camera management across different networks
Pre-allocation of dedicated recording spaces
User-defined trigger events and corresponding actions
Data sources paired with cameras for quick search
Network interfaces assigned to each camera for recording sessions
Support for RTSP and WebRTC
Support for exporting and importing camera connection information as CSV files
Integration with QVR Pro Client for viewing live and recorded surveillance videos
Daily auto backup for QVR Pro configuration files
Support for importing recordings
Support for recording H.264 camera video streams

QVR Pro Client (Desktop) 

Instant switch between Live and Playback modes
Dynamic and adjustable layouts for camera and E-map views
Qdewarp technique for dewarping fisheye and 360-degree cameras
Region of interest for each channel
Support for adding and editing cameras on QVR Pro Client
Hardware acceleration for fisheye cameras
Video wall (up to 8 monitors)
Hardware acceleration on Windows, Mac, Ubuntu, and HybridDesk Station
Multithreaded decoding
Synchronized video playback
Support for specifying exported recordings on the timeline
Virtual keyboard (for HybridDesk Station version)
Support for playing back recordings on deleted channels
Notification messages for changes in system time zone on QVR Pro
Server dashboard (when connected to QVR Center)
Playback control via the keyboard (space and arrow keys)
Support for displaying camera locations and event notifications on e-maps
Support for selecting the format of export files
Support for 2-step verification
Cross-platform support: Windows, macOS, Ubuntu, QNAP HybridDesk Station

QVR Pro Client (Mobile) 

Instant switch between Live and Playback modes
Cross-platform support: Android and iOS
Various advanced monitoring options, including sequential mode, PTZ control, auto cruising, and preset point control
Support for receiving Instant push notifications
Support for displaying camera locations on e-maps
Server dashboard that displays NAS information, camera status, and recording space status.

QVR Center 

Support for managing up to 128 QVR Pro servers (QVR Pro Gold license required)
Statistical graphics for visualizing event data
Log management for all added servers
Integration with QVR Pro Client for central monitoring across multiple servers
Centralized views using cameras from multiple servers
Backward compatibility with Surveillance Station and VioStor NVR

QVR Guard 

Failover solution designed for QVR Pro to ensure server availability
Viewing task details during the failover period
Automatic switch between Standby and Takeover modes based on the QVR Pro server status


Support for configuring USB webcams as ONVIF IP cameras (remotely manageable)
Support for monitoring live views (no other apps required)
Support for RTSP

Surveillance Station 

Support for up to 5,000 IP cameras
2 free camera licenses
Note: Surveillance Station supports a maximum of 32 camera channels. To add more camera channels, you need to purchase licenses from the QNAP License Store.
Instant playback for recent surveillance events
Visual options for e-maps
Playback speed control
Supporting for displaying preview snapshots on the timeline
Intelligent video analytics (IVA) for advanced video searching
Surveillance client designed for macOS
Mobile surveillance application (Vmobile) for iOS and Android
Mobile recording application (Vcam) for iOS and Android

QVPN Service 

VPN server
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.
VPN client
Support PPTP, L2TP/IPSec, OpenVPN, QBelt (QNAP proprietary) protocol.
Support using VPN as a NAS default gateway.
Support connection log check.
Support utility and Mobile apps for Windows, Mac, iOS, Android.

DLNA Server 

Support for DLNA/UPnP TVs and players such as PlayStation 4 and Xbox One
Support for CUE indexing file for APE and FLAC
Q'center (NAS CMS) 
Monitoring of multiple NAS devices
Utilization history reports
Unified configuration management
Monitoring of NAS devices behind NAT routers with Connect to Q'center

Qfinder Pro 

QNAP NAS location on the same local network
NAS shared folder mounting
Basic setting configuration (firmware, SMTP server, and network settings)
Direct connection with USB QuickAccess and Thunderbolt (specific models only)
Storage Plug & Connect (Windows only)
Creation and mapping of NAS shared folders
Creation of and connection to iSCSI targets and LUNs
Media upload (Windows only)
Media file upload to the NAS
Automatic creation of thumbnails or transcoding of videos using the computer

App Center 

Official and community software add-ons
Automatic updates and notifications for new versions
Repository for imported third-party content
User-specified volume for storing applications
Apple TV & Chromecast 
Video, photo and music streaming to Apple TV or Chromecast with Qmedia app.

Download Station 

PC-less downloads (BitTorrent, FlashGet, FTP/FTPS, HTTP/HTTPS, QQDL, and Thunder)
The application supports a maximum of 500 tasks.
The maximum number of concurrent downloads is 90 (30 BT/PT, 30 HTTP, 30 FTP)
BitTorrent: Support for search, magnet links, private trackers, and proxy
Scheduled download and bandwidth control
RSS subscription and download (broadcatching)
Support for add-ons that extend download functionality
Qget: Mobile application for download browsing and management

Notes Station 3 

Insert Evernote Notes in Notes Station 3
Enable Embedding YouTube video into Notes
Table creation using the insert table editor
HD (HybridDesk) Station 
Photo, video, and music playback on TV through HDMI
Support for Chrome and Firefox
Support for international keyboards and mouse input
User login permissions
Note: The decoding capability of the CPU and graphics card may affect playback of some video files.

Linux Station 

Usage of the NAS as a Linux-based computer
Support for Ubuntu 14.04, Ubuntu 16.04 and Ubuntu Kylin 16.04
Application downloading and usage from the Ubuntu Software Center
Remote desktop for remote monitoring and accessing of Ubuntu
Note: The application requires at least 4 GB of memory and installation of Container Station.


One-way scheduled sync of contacts from multiple Google accounts
Contact importing from CSV or vCard 3.0 files
Contact exporting to CSV or vCard 3.0 files
Duplicate contact searching and merging
Contact management: Groups, favorites, lock, search, delete and restore
Support for Android and iOS

IFTTT Agent 

Daily task automation
Social media data archiving
File synchronization between the NAS and various cloud services
System event notifications on Line, Skype, Gmail, and mobile phones
Music playback on Music Station using Amazon Echo voice commands
Usage of motion detection sensors as trigger for camera recording on Surveillance Station

Qmiix Agent: 

Trigger based file synchronization between the NAS and various cloud storage services
View miixes made using the Qmiix web portal that include triggers and actions involving QNAP apps.
Create miixes for web-based and NAS-related apps.
Create miixes on the Qmiix web portal that include File Station, a QNAP app
System event notifications to Line, Skype, Gmail, and mobile phones

Security Counselor 

Multiple Security Policies (Basic/Intermediate/Advanced/Custom).
Checks NAS settings for security weaknesses.
Integrates with existing anti-virus services.
Integrates with existing anti-malware services.
Integrates with the Security Advisory service.

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.

QIoT Suite 

Launch your IoT application with the shortest time and least human force
Supports multiple protocols (MQTT, HTTP and CoAP) and dashboards, and allows for the quick connection of development boards along with multiple sensors
The graphical rules engine provides drag-and-drop blocks with connection nodes, making it flexible to form a workflow
The customizable dashboard offers great advantages to help monitor important information of connected IoT devices.
Added support for the OPC UA protocol, QIoT OPC UA Client: connects to OPC UA servers and QIoT OPC UA Server: communicates with OPC UA clients and transfers data
Note: The application requires at least 4 GB of memory and installation of Container Station.

AWS Greengrass 

Respond to Local Events in Near Real-time
Operate Offline
Secure Communication
Simplified Device Programming with AWS Lambda
Reduce the Cost of Running IoT Applications


Centralized Remote Management solution designed for IT Teams in every industry relying on networked computing devices.
Remote Management of Windows, Linux and IPMI compatible devices
Offers you threshold-based alerts to fix performance problems before they impact your users, applications and the business.
Supports many active monitors like CPU Utilization, Memory Utilization, Disk Utilization, CPU Temperature, CPU Fan speed, and many more, giving complete visibility for administrators across all the mission critical computing devices.
Enable you to benefit from higher productivity, better collaboration and faster recovery from device downtime or system performance
Support Android mobile app
Note: The application requires installation of Container Station.

General Notes 

Designs and specifications are subject to change without notice.
Some features may vary by model.
4 does not support DRM content and some IPv6 services.
Some data encryption features may be unavailable because of country-specific legislative restrictions.


Package Contents

TS-451D2 x1
Power Cord x 1Ethernet cable x 1
Flat head screw (for 3.5" HDD) x 16
Flat head screw (for 2.5" HDD) x 12
AC Adapter
Drive tray keys x 2
Quick Installation Guide (QIG)

Manufacturer Part No:
Product Type:
Product Family:
Shipping Weight:
1 kg
PB Part No:
Product Model:
Warranty: 24 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.


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Delivery & Pick-up

Learn more about delivery time-frames over Christmas and the New Year period

Potential courier delays: Please note that due to the high volumes currently within the NZ courier network there is potential for some deliveries to be delayed.

Delivery Estimates

The estimated time to ship for each product we sell is detailed on the individual product page just underneath the price. From when your items ship, products typically arrive within 1 working day for North Island deliveries and 2 working days for South Island deliveries. Rural deliveries may take an extra working day, and bulk deliveries may take an extra 2-4 working days.

Same Day Delivery

Need your order in a hurry? PB Tech offers same day delivery for the Auckland, Hamilton & Christchurch region. Simple place your order before 2pm (provided your items are in stock) and select one of our same day delivery options 'Evening Delivery' or 'Urgent 3-hour Delivery' in the checkout. T&C's apply. Learn more about Same Day Delivery.

Shipping Costs

Shipping costs vary based on your location and the items being shipped and in some cases shipping may even be FREE.

To calculate what the shipping costs will be for your order, add the items you are interested in to your cart, view the Shopping Cart page, and select your 'Delivery Area' to calculate the shipping cost.

Shipping Security & Insurance

All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

1 Hour Store Pick-up / Click & Collect

You can pick-up your online order from any of our stores nationwide. You can select which store you want to pick up from at the checkout. Provided the store you select has stock and there's no hold-ups with payment we will have your order ready within 1 hour (during normal trading hours for that store) otherwise it may take up to 5 working days to transfer the stock to the store so your order can be fulfilled. Learn more about our Click & Collect process.

Overseas Shipments

PB Tech regularly ships overseas to Australia and beyond. If you are located in Australia, you can order directly from our Australian site If you are from another country you can order from

Returns & Warranty

7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed / unopened, with packaging in original condition, and accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase.

Please note, items purchased on finance cannot be exchanged for a gift card.

Hassle free warranty service

If your product develops a fault within the manufacturer warranty period, you can either contact the manufacturer directly (some manufacturers provide a high level of warranty service - including free pickup or in some cases onsite repair), or return to one of our services centres / stores. Where the product has been directly imported by PB Tech, you need to contact us directly or present the product at any one of our service centres / stores together with your proof of purchase.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

Returning a product / making a warranty claim

To contact the manufacturer directly to troubleshoot your product or to request a warranty repair, please view the list of manufacturer / brand warranty contacts (for products imported directly by PB Tech please return to us directly by completing our request a return form).

To return a product to PB Tech directly, please complete our request a return form.

Or view our returns policy for more information.