QNAP TS-451 4-Bay NAS Network Storage with 4GB RAM

USD 734.9377 SKU: TS-451-4G (4GB RAM)

Availability: In stock

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  • QNAP TS-451 4-Bay NAS Network Storage with 4GB RAM
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General Type
Network Storage (2.5"/3.5" SATA 6Gbps)
General Features
RAM: 4 GB DDR3L, Flash Memory: 512MB DOM, Fan: 1 x Quiet Cooling fan (7 cm, 12V DC), CPU: Intel Celeron 2.41GHz Dual-Core Processor (burst up to 2.58 GHz)
General Interface
2 USB 3.0, 2 USB 2.0 (Support USB Printer, Pen Drive, and USB UPS)
Expansion And Connectivity Interfaces
LAN: 2 x Gigabit RJ-45 Ethernet Port, HDMI
Expansion And Connectivity Compatible Bays
4-Bay NAS
Power Source
Power Supply: External Power Adapter, 90W, 100-240V
Physical Dimensions
177 x 180 x 235 mm
Physical Weight
4.3 kg
Others Temperature
Others Additional Features
Secure Design: Kensington Security Slot for Theft Prevention, IR Receiver: MCE-Compatible, Alarm Buzzer: System Warning


QNAP TS-451 4-Bay NAS Network Storage with 2GB RAM
The TS-451 provides a high performance and high capacity storage solution for SOHO & home, workgroup, and SMB users. Powered by the advanced QTS operating system, the TS-451 performs as an easy-to-use yet powerful NAS for data backup, file synchronization, remote access, home entertainment, and is ideal for users to build a personal cloud to access their data easily.

High Performance
Powered by a new 22nm 64-bit Intel Celeron Dual-Core 2.41 GHz processor with 4GB energy-efficient DDR3L RAM (upgradable up to 8GB), coupled with the support of dual LAN ports and HDMI connectivity, the TS-451 is a powerful home NAS with supreme value and great performance to deliver up to 220MB/s read & write speeds. The TS-451 can also automatically increase the processor's clock rate from 2.41GHz to 2.58GHz when needed for CPU-intensive tasks. The TS-451’s fast encryption and decryption performance provides transfer speeds of up to 68MB/s with AES-256 bit volume encryption, boosting system performance & security while ensuring the safety of sensitive personal data stored in the TS-451. When installed with the latest dual-band 2.4GHz/5GHz 802.11ac Wi-Fi network card, the TS-451 can offer remarkably high speeds for transferring large amount of files and streaming bandwidth-consuming multimedia.

QTS Simple and Efficient
Thanks to the intuitive user interface of QTS, system operations of the TS-451 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.

Easily Build your Personal Cloud and Access Anywhere
QNAP’s myQNAPcloud provides an always-connected infrastructure for business and home users to build their private or personal cloud with ease. Through any web browser or the free mobile app the TS-451 becomes your personal cloud so you are always connected to your data. Take advantage of the myQNAPcloud service, which allows you to remotely access your TS-451 wherever you are. Instantly stream or share your multimedia contents and share them with your friends.

Real-time and offline HD video Transcoding
The TS-451 delivers superior real-time Full HD video transcoding to convert your videos to formats that can be smoothly played on PCs, mobile devices and Smart TVs. It allows for up to 5 devices to simultaneously view different videos stored on the TS-451 with on-the-fly hardware accelerated transcoding. The TS-451 allows you to enjoy instant videos on multiple devices - even those that lack computing power or have limited file format support - without the need for complicated and time-consuming file conversion.


  • Transcode Full HD videos on-the-fly or offline
  • Play 1080p videos with 7.1 channel surround sound pass-through via HDMI output
  • Create a personal cloud and stream your multimedia library via DLNA, AirPlay, and Plex
  • Centralize your file storage, sharing and backup
  • Run a virtual machine and extend the functionality of the NAS with an integrated virtualization solution
  • Expand the total raw storage capacity up to 72TB (with maximum 12 hard drives) with the economical QNAP expansion enclosure UX-800P