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The QNAP TS-451D2 NAS with Intel Celeron Dual-Core Processor allows you to enjoy a high-quality multimedia experience.Video transcoding and HDMI 2.0 output allow the TS-451D2 to support direct playback of multimedia content on TVs and monitors. Resolutions up to 4K (4096 x 2160) at 60 Hz are supported, and when combined with a wireless keyboard and mouse, the TS-451D2 becomes a convenient media player.
The TS-451D2's 4 bays offer high storage potential for home and small business users to store, share and backup files. Business users can take advantage of its dual-core Intel processor to enable seamless on-site/remote multi-user access to work files, while home users can enjoy a high-quality multimedia experience with both streaming and direct 4K HDMI 2.0 output.
The TS-451D2 supports SATA 6 Gbps drives and features a 2.0 GHz (2.9 GHz in burst mode) Intel Celeron J4025 dual-core processor. It is equipped with 2 GB or 4 GB of DDR4 So-Dimm and there are two memory slots which allow for expansion up to 8 GB. With Intel AES-NI encryption engine, the TS-451D2 provides unmatched encryption performance with AES-256-bit encryption acceleration, which boosts system performance while ensuring the security of sensitive business data stored in the NAS.
The shallow TS-451D2 can easily be placed in a media cabinet. By installing Plex Media Server from QTS App Center, you can stream media files stored on the TS-451D2 to mobile and streaming media devices (including DLNA, Roku, Amazon Fire TV and Google Chromecast). Also, the TS-451D2 includes advanced Intel UHD Graphics 600 that supports hardware decoding and real-time transcoding, allowing you to convert videos into universal file formats that can be played smoothly on multiple devices.
The TS-451D2 stores data and files centrally and supports popular file sharing protocols, including SMB/CIFS, AFP and NFS for Windows, Mac and Linux/UNIX devices. Combined with Qsync (a feature that turns a QNAP NAS into a secure, high-capacity data centre for file synchronisation), any file uploaded to the TS-451D2 will be made available to all connected devices, such as computers, laptops, or mobile devices. Hybrid Backup Sync allows you to easily backup or synchronize data to other QNAP NAS, remote servers, or cloud storage for easy disaster recovery. In addition, QuDedup technology greatly improves the efficiency of multi-version backup on the destination storage, while optimizing storage utilization. You can install the QuDedup extraction tool on your computer and restore deduplicated files to their normal state.
QVR Pro allows you to arrange a dedicated and independent storage space to monitor data on the TS-451D2 and to take advantage of the benefits of scalable NAS storage. It greatly simplifies camera management, storage allocation, live camera viewing and playback. Supporting over 5,000 IP cameras (including industry-standard fisheye cameras), QVR Pro offers 8 free licensed channels for surveillance as well as the optional QVR Pro Camera Channel Expansion License for wider security deployment. You can also use the QVR Pro Client mobile app to monitor at any time, or use a USB webcam as an ONVIF network camera with the QUSBCam2 app.
Select your criteria
General information |
Product name |
QNAP TS-451D2-4G |
Brand |
QNAP | |
Model |
TS-451D2-4G | |
Processor |
CPU frequency |
2 GHz |
Memory size |
4 GB | |
Memory type |
DDR4 | |
Network |
Network standard(s) |
10/100/1000 Mbps |
Network connector(s) |
2 X Gigabit Ethernet - RJ45 Female | |
Wake On LAN |
Yes | |
DLNA certification |
Yes | |
Storage |
Capacity |
0 GB |
Internal interface |
4 X Serial ATA 6Gb/s (SATA Revision 3) | |
Hard drive format |
2" 1/2 | |
| 3" 1/2 | ||
Hard drive |
Without hard drive | |
Number of discs |
0 | |
Max number of discs |
4 | |
RAID supported |
Yes | |
Supported RAID Modes |
0 | |
| 1 | ||
| 10 | ||
| 5 | ||
| 6 | ||
| JBOD | ||
| Single Disk | ||
File system |
Ext4 | |
Connector(s) |
4 X USB 3.0 | |
| 1 X HDMI 2.0 Female | ||
Compatibility |
Server functions |
Web |
| Video surveillance | ||
| Photo | ||
| Multimedia | ||
| FTP | ||
Windows ADS |
Yes | |
iSCSI (SCSI encapsulation) |
Yes | |
Download without PC |
Yes | |
Scalable |
Yes | |
Supported OS |
Microsoft Windows 8 | |
| Microsoft Windows 7 | ||
| Microsoft Windows 10 | ||
| Windows Server 2019 | ||
| Windows Server 2016 | ||
| Windows Server 2012 R2 | ||
| Windows Server 2012 | ||
| Windows Server 2008 R2 | ||
| Linux | ||
| Mac OS X 10.10 or higher | ||
Physical characteristics |
Rackable |
No |
Sound level |
18.5 dB | |
Consumption |
25.98 W | |
Width |
160 mm | |
Height |
165.3 mm | |
Depth |
219.4 mm | |
Weight |
2.09 kg | |
Warranties |
Commercial warranty |
Seller 2 years |
Legal warranty |
See terms & conditions |
See all QNAP products
Product referenced on 29 Sep 2020
After about 18-24 months, it starts to fail. No, not the disks, but the software. Today, after 3 years, you need a "reboot campaign" every 6 weeks or so, with several reboots before it "falls into place". Due to a design fault, upgrades are no longer possible without a total reset (with loss of data).
Avoid this brand like the plague.
Changed from an old Synology I don't regret anything. The interface is clear and fast. Simple installation, guided and explained settings. I've been using the SSD as a first drive to install the greedy Plex database and 3 x 4TB HDDs later, I'm ready for the next confinement. T_T'
I bought this server mainly to use it as a networked storage server.
It also manages an expansion box.
It works flawlessly under RAID 5. File transfers are smooth. Multimedia playback (videos, photos, music) is trouble-free.
The installation of the disks and the configuration are simple. The case is both robust and well finished. Good ventilation of the disks is appreciated.
All in all, it's a pleasure.
