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The TS-451U, featuring the easy-to-use QTS operating system, is an affordable, reliable and scalable 4-bay rackmount NAS designed for small offices and home offices, assisting in daily operations including file storage, backup, sharing, synchronization, and more. The TS-451U supports SATA 6Gb/s drives and delivers high performance with persistent throughput, providing a comprehensive storage solution for users to build a private cloud to access their data easily.
- Manage, share, and back up business data with Real-time Remote Replication (RTRR)
- Enhanced data security with high-performance AES 256-bit encryption and anti-virus
- Expand the total raw storage capacity up to 128TB with the economical UX-1200U-RP QNAP expansion enclosure
- Use the TS-451U with exclusive QvPC Technology
- Run multiple Windows/Linux/UNIX/Android-based virtual machines with the Virtualization Station
- Creatively present your animated content and advertisements with the Signage Station
Dual-core 2.41GHz processor for higher performance
Powered by a 22nm 64-bit dual-core Intel® Celeron® 2.41GHz processor with 1GB energy-efficient DDR3L RAM (upgradable to 8GB), coupled with the support of SATA 6Gb/s, 2 Gigabit LAN ports and HDMI output, the TS-451U is a powerful NAS that delivers up to 224 MB/s read & write speeds with dual LAN ports. The TS-451U can also automatically increase the processor's clock rate from 2.41GHz to 2.58GHz when needed for CPU-intensive tasks. The TS-451U’s fast encryption and decryption performance provides transfer speeds of up to 128 MB/s with AES-256 bit volume encryption, boosting system performance & security while ensuring the safety of sensitive data stored in the TS-451U.
Tested in QNAP Labs. Figures may vary by environment.
- OS： QTS 4.1.2
- Volume type： RAID 5; 4 x Seagate ST1000NM0033
- Network environment： direct connection between NAS and PC, 1GbE LAN (MTU 1500);
- Intel(R) Core(TM) i7-4770 3.40GHz CPU; DDR3 1600Hz 16GB; Seagate ST500DM002; Intel Gigabit CT (MTU 1500); Windows® 7 Professional 64bit SP1
- IOMeter configuration：Transferring 8GB file continuously to/from 2 PCs for 3 minutes. Block size： 64KB for SMB2.0 (Throughput)
QTS - Simple and efficient
Thanks to the intuitive user interface of QTS, system operations of the TS-451U are smooth and handy. Its intelligent desktop allows you to find desired functions quickly, create desktop shortcuts or group shortcuts, monitor important system information on a real-time basis, and open multiple application windows to run multiple tasks concurrently, bringing greater operating efficiency.
Qsirch – A smarter, faster way to search
Quickly and easily find documents, photos, videos, and music with Qsirch, QNAP’s new built-in NAS search application lets you find what you need by real-time, natural search. Simply type in as much as you know about what you are trying to find, including bits of the file name or even words/phrases in the document, and Qsirch will display a list of matches, complete with thumbnails, as you type. Qsirch even remembers your search history so you can quickly navigate to files you’ve previously searched for. Qsirch is a huge productivity boost – it greatly reduces the amount of time spent looking for files on the NAS so you can focus on other tasks.
Note: 2GB RAM (4GB or more RAM is recommended for optimum performance) and QTS 4.1 or newer firmware is required.
SSD cache acceleration
The TS-451U supports SSD caching which can greatly boost IOPS performance of storage volumes. It is perfect for improving overall workflow of IOPS-demanding applications such as virtualization.
Learn more: SSD cache
Economical storage expansion with scale-up solution
The TS-451U offers a high performance yet affordable storage solution to fulfill the needs of business in archiving rapidly growing data & large files. The TS-451U supports capacity expansion by connecting a QNAP expansion enclosure. With the QNAP scale-up solution, the raw storage capacity can be expanded on demand, making the TS-451U an ideal file center with a large storage capacity for business data.
The maximum raw storage capacity available by connecting a QNAP expansion enclosure:
|Turbo NAS Model||QNAP Expansion Enclosure||No. of RAID Expansion Enclosure||Total HDD No.|
(NAS + Enclosure)
|Max. Raw Capacity (TB)*|
*The maximum capacity is calculated by using 8TB HDDs.
Monitor and manage multiple NAS with Q'center
Q'center turns your TS-451U into a central management system to manage multiple Turbo NAS units. After installing Q'center in QTS App Center, you can use the TS-451U to centrally manage multi-site Turbo NAS for monitoring system logs and managing firmware update and maintenance, and enjoy major benefits including ease-of-use, cost-efficiency, convenience and flexibility. Managing multiple Turbo NAS becomes so easy and efficiently.
Learn more: Q'center
Cross-platform file sharing, centralized data storage
The TS-451U supports SMB/CIFS, NFS, and AFP protocols for file sharing across Windows, Mac, Linux/UNIX networks. Data, logs and ISO images of CDs and DVDs can be centrally stored on the TS-451U and protected by an integrated antivirus solution. The Windows AD and LDAP services enable system administrators to configure user permissions by using an existing Windows AD server, LDAP server or built-in LDAP service. The TS-451U supports SAMBA v4 and can act as a Windows domain controller to manage privilege settings.
Well-rounded backup solutions to secure data
QNAP NetBak Replicator supports real-time and scheduled data backup on Windows including Outlook email archiving. Apple Time Machine is also supported to provide Mac OS X users with a solution to effortlessly back up data to the TS-451U. The USB 2.0 port on the front panel of the TS-451U features a one-touch-copy function for you to instantly back up data from external drives to the TS-451U with just one click, or alternatively to back up data from the TS-451U to external drives. A wide range of third-party backup software such as Acronis® True Image and Symantec® Backup Exec are also supported.
Disaster recovery solutions brings peace of mind
The TS-451U offers various data recovery options. RTRR (Real-Time Remote Replication) supports real time or scheduled data backup to a remote Turbo NAS or FTP server and synchronizes files to a remote folder from a local folder with better backup efficiency and reduced backup time. The TS-451U also supports rsync protocol to back up data to another remote server on scheduled basis. Data can also be backed up to and restored from a range of cloud storage services, including Amazon® S3, Amazon Glacier, Microsoft® Azure, ElephantDrive®, Dropbox® and Google Cloud Storage.
File synchronization across multiple devices
The Qsync utility turns your TS-451U into a safe data center for file synchronization with a large storage capacity. Any file uploaded to the TS-451U will be made available for all linked devices, such as computers, laptops or mobile devices. Qsync is especially useful for frequent travelers to manage files and always have the most updated files on different devices. Qsync provides multiple ways of file synchronization and group file sharing, greatly enhancing the flexibility of collaboration.
Comprehensive security options
In open network environments, business data may be exposed in a potential hack. The TS-451U provides numerous security options, such as encrypted access, IP blocking, and more. IT administrators can also control the access rights of each user to different folders, preventing unauthorized access to important files. The TS-451U is validated with military-level FIPS 140-2 AES 256-bit encryption, preventing sensitive business data from unauthorized access and breach even if the hard drives or the entire system were stolen.
Run additional operating systems on the TS-451U
With the support for Intel® Virtualization Technology (VT-x), the TS-451U can operate the Virtualization Station, transforming the TS-451U into a 2-in-a-box NAS that can function as an all-in-one NAS and a virtualization platform that supports multiple operating systems, fast virtual machine (VM) creation, VM import/export, snapshot, and enables desktop operations on web browsers. With the easy-to-use interface, you can centrally manage all of the VMs created on the TS-451U with minimal effort. You can also download VMs on demand from online VM markets and import them to the TS-451U without any complex procedures.
Note: 2GB or more of RAM is required
Comprehensive surveillance solution providing 24/7 security
Surveillance Station is professional network surveillance Video Management System (VMS) that offers a user-friendly management interface, over 2,700 compatible IP camera models, and expandable IP camera channel licenses. It supports real-time monitoring, video & audio recording and playback with a wide range of customizable settings. You can also install the Vmobile mobile app on your iOS® or Android™ devices to manage the monitored channels anytime and anywhere to safeguard your office environment, or install the Vcam mobile app to turn your device into a network camera to instantly record to your TS-451U. The TS-451U offers 2 free IP camera channels and you can expand up to 32 channels by purchasing additional licenses.
Signage Station - Creatively present your animated content and ads
With the Signage Station, it is easy to create content for a wide range of materials such as menu boards, advertisements, posters, and business profiles. The Signage Station is a great tool to invigorate your advertisements or animated materials for promoting your services, and to update contents in a timely manner. The iArtist Lite application, with intuitive editing tools, helps you create these signs with simple drag & drop tools. Your creativity can now travel around the world with a few simple steps to instantly get published, revised, and shared.
Access, use, sync and enjoy with your tablets and smartphones
The TS-451U is your private cloud storage that virtually enlarges the capacity of your mobile devices. Qfile allows you to access, upload, download, manage, and share stored files easily as if you are carrying tons of files in your pocket. If Qfile is installed on an iOS device, users can also browse videos & photos stored on the TS-451U and play via Apple TV. Qmanager lets you monitor & manage the TS-451U remotely and efficiently without turning on a PC; Qmusic allows you to listen to your music collections on the TS-451U anytime and anywhere, and download to enjoy offline; Qphoto & Qvideo make it easy for you to browse and share the photos or videos on the go.
Install-on-demand apps to extend NAS functionality
The TS-451U has a built-in App Center that provides various install-on-demand apps developed by QNAP and third-party developers, including tools for backup/sync, business, content management, communications, download, entertainment, and much more. It is also a centralized location for managing & updating installed apps. In addition, QNAP’s development platform embraces the open-source spirit to enable developers to create their own apps, adding potentially limitless potential for the TS-451U.
The TS-451U utilizes a 22nm CPU and DDR3L RAM which feature low voltage requirements and low power consumption whilst maintaining high performance in system operations. Other eco-friendly designs include scheduled power on/off, hard disk standby mode, and Wake on LAN.
Easy-to-use NAS management tools
The TS-451U provides comprehensive system tools to increase management efficiency.
With the SMTP and SMS settings on the Turbo NAS, system administrators will get notifications via SMS or email if an error occurs.
The Turbo NAS supports Syslog server that collects logs from various connected devices over the Internet and saves the data, enabling centralized log management with greater efficiency.
The TS-451U supports various applications for home offices as an all-in-one Turbo NAS with cost-efficiency.
The Turbo NAS supports FTP server to share large size files, coming with user-defined settings including bandwidth limitation, number of connections, and write-only permission.
The Turbo NAS supports VPN server which provides an easy way for IT administrators to build up a secure private network and allows the staff to log on from outside the office and access business resources securely such as files and Internet connections.
MANUFACTURER PARTS NUMBER : TS-451U-US
|Processor||Dual-core Intel® Celeron® 2.41GHz (up to 2.58GHz)|
|Memory||Installed: 1GB DDR3L SDRAM (1 x 1GB)
Slots: 2 SODIMM (Max: 8GB)
NOTE: 1. When installing two memory modules, please ensure that they are the same size and ideally use the same type of RAM for both memory slots.
|Internal drive||4 x 3.5” or 2.5” SATA 6Gb/s, SATA 3Gb/s HDD or SSD
1. The system is shipped without HDD.
2. HDD compatibility list
|Drive tray||4 Hot-swappable and lockable trays|
|Network interface||2 RJ45 Gigabit Ethernet ports|
|Ports||4 x USB 3.0 (rear)
1 x USB 2.0 (front)
1 x HDMI
1 x console (system maintenance)
|LED indicators||Status, LAN, USB, HDD 1, HDD 2, HDD3, HDD4|
|Buttons||Power, USB One-Touch-Copy, reset|
|Alarm Buzzer||System warning|
|Form Factor||1U, rack mountable|
|Dimensions||44 (H) x 439 (W) x 499 (D) mm
1.73 (H) x 17.28 (W) x 19.65 (D) inch
|Weight||Net weight: 7.63 kg (16.82 lbs)
Gross weight: 11.60 kg (25.57 lbs)
|Power consumption (W)||HDD standby: 21.03W
In operation: 38.01W
(with 4 x 2TB HDD installed)
|Sound Level*||Sound pressure (LpAm) :38.4 dB(A)|
|Power Supply||Input: 100-240V AC, 50/60Hz; Output: 250W|
|Fan||2 x quiet cooling fan (4 cm, 12V DC)|
* Testing Environment:
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.