TS-451DeU

1U short depth rackmount 2.5GbE NAS suited for small-to-midsize offices and audiovisual rooms

Available Models

• TS-451DeU-2G (Legacy)

TS-451DeU-2G (Legacy)

Intel® Celeron® J4025 2-core/2-thread processor, burst up to 2.9 GHz, 2 GB SODIMM DDR4 (1 x 2 GB)

Smaller footprint for bigger opportunities

Compared to a traditional 4-bay rackmount NAS, the compact TS-451DeU has a depth of only 11.57 inches (295 mm). This makes the TS-451DeU an excellent choice for smaller racks, and the unused space can be reserved for cabling or ventilation. The TS-451DeU is space-saving for flexible deployment and is especially suitable for multiple locations and applications including offices, audiovisual rooms, and security surveillance recording.

Note: Users can purchase the optional RAIL-B02 rail kit to deploy the TS-451DeU in a 19-inch rack following the ANSI/EIA-RS-310-D standard.

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

The TS-451DeU supports SATA 6 Gb/s drives and features a power-efficient Intel® Celeron® J4025 dual-core 2.0 GHz processor (bursts up to 2.9 GHz). There are two DDR4 SODIMM memory slots with 2 GB DDR4 memory as standard, but can be upgraded up to 8 GB. With Intel® AES-NI encryption engine, the TS-451DeU provides unmatched encryption performance with AES-256 bit encryption acceleration, boosting system performance while ensuring the safety of sensitive business data stored in the NAS.

Windows Sequential File Transfer (2 x 2.5GbE, 10GB file)

Read

476 MB/s

Write

436 MB/s

Windows Sequential File Transfer (1 x 2.5GbE, 10GB file)

Read

274 MB/s

Write

273 MB/s

Windows Sequential File Transfer (1 x 1GbE, 10GB file)

Read

112 MB/s

Write

112 MB/s

Windows File Transfer with Encrypted Volume (2 x 2.5GbE, 10GB file)

Read

463 MB/s

Write

349 MB/s

Tested in QNAP Labs. Figures may vary by environment.

Test Environment:
NAS: TS-451DeU-2G
OS: QTS 4.4.2, MTU-9000
Volume type: Qtier, RAID 5: 4 x Seagate 1TB ES.3 HDD + RAID 1: 2 x Samsung 1TB M.2 860 EVO SSD
Client PC: Intel® Core TM i7-6700 3.40GHz CPU; 32GB RAM; Intel X550 NIC, MTU-9000; Windows® 10 Pro

Follow the Wi-Fi 6 trends and upgrade to a 2.5GbE NAS

The new-gen Wi-Fi 6 (802.11ax) trend has driven higher bandwidth demands for wired and wireless network connections. The TS-451DeU comes with two 2.5GbE RJ45 LAN ports that allow you to use existing CAT5e cables to upgrade network speeds from 1 Gigabit to 2.5 Gigabit. The dual 2.5GbE ports also support Port Trunking for up to 5 Gbps transmission speeds!

Future-proof your IT infrastructure for high-speed networks

QNAP provides comprehensive, budget-friendly storage and networking solutions, allowing you to easily and flexibly upgrade network environments for bandwidth-hungry applications.

A fast 2.5GbE NAS	Upgrade computers and servers	Add a 5GbE Ethernet port to laptop	A switch that supports 2.5GbE+
The TS-451DeU provides two native 2.5GbE ports.	PCIe-equipped computers and servers can install QNAP network expansion cards that support 10G/5G/2.5G/1G/100M Multi-Gig.	Laptops and computers can use a QNAP USB 3.2 Gen 1 to 5GbE adapter that supports N-BASET/Multi-Gig.	QNAP 10GbE/NBASE-T switches allow connecting multiple workstations and devices for high-speed collaboration.

SSD caching and auto-tiering optimize application performance

Besides using 2.5-inch SSDs for cache acceleration, the TS-451DeU features two M.2 SSD slots that enable you to install SATA 6Gb/s M.2 SSDs with 2280 form factors (sold separately). Coupled with QNAP’s SSD-aware features, the TS-451DeU maximizes performance with high cost-effectiveness.

Learn More: QNAP’s SSD technology

SSD over-provisioning (Over-provisioning)	SSD cache acceleration	Qtier for auto-tiering
Add additional SSD over-provisioning (1% ~60%) to prevent write amplification issues and improve SSD random write speeds and endurance. You can potentially attain enterprise-grade SSD performance levels from consumer-level SSDs!	Enables SSD caching for increasing IOPS performance and reducing latency for storage volumes. This feature is perfect for IOPS-demanding applications including databases and virtualization. The TS-451DeU also supports write-only cache to boost write-intensive applications.	Qtier technology drives auto-tiered storage with continuous data optimization across high-performance SSDs and high-capacity HDDs based on access frequency. I/O-Aware Qtier can reserve a cache-like space in the SSD tiered to handle burst I/O in real time.

A secure file center supporting regular backups and snapshot protection

The TS-451DeU provides a reliable, flexible backup and disaster recovery solution to simplify routine backup jobs cost-efficiently and with high productivity.

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  Windows® and Mac® backup

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

  Learn More: Data backup & disaster recovery

• 

  Snapshots for Volume & LUN

  Block-level snapshots are dependable data protection methods, especially in the face of growing encrypted virus threats. The TS-451DeU supports up to 32 snapshots per volume/LUN, and up to 64 snapshots per NAS. (Upgrading the TS-451DeU to over 4 GB RAM will enable the support for more snapshots versions).

  Learn More: Volume & LUN snapshots, Protect your data from Ransomware

• 

  VM backup

  The TS-451DeU is perfect for backing up virtual machines, with its high performance, huge storage capacities, integrated virtualization solutions, and snapshot support that records system status any time.

  Learn More: VM backup

Increased HBS backup efficiency with 2.5GbE connectivity and deduplication

Hybrid Backup Sync (HBS) consolidates backup, restoration and synchronization functions (using RTRR, Rsync, FTP, CIFS/SMB) for easily transferring data in the TS-451DeU to local, remote and cloud storage spaces (including Microsoft One Drive®, Google Drive™, Dropbox®, and more) as a comprehensive data storage and disaster recovery plan. Supporting QuDedup technology that removes duplicate data at the source, HBS reduces backup data size and speeds up future backup tasks. This is also beneficial for accelerating multi-version backups for greater protection against data loss.

Learn More: Efficient HBS, QuDedup source-based data deduplication

A multimedia server for video streaming and transcoding

The short depth TS-451DeU can be easily placed in a media cabinet. By installing Plex® Media Server from QTS App Center, you can stream media files stored on the TS-451DeU to mobiles and media streaming devices (including DLNA®, Roku®, Amazon Fire TV® and Google Chromecast™). The TS-451DeU also features advanced Intel® UHD Graphics 600 that supports hardware decoding and real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played on multiple devices. To have greater multimedia enjoyment, Cinema28 empowers your TS-451DeU with multi-zone multimedia management to stream media files to every connected device in different rooms.

Learn More: Plex Media Server, QNAP media streaming

Note: PlexPass is required for Plex Media Server hardware transcoding. The TS-451DeU’s hardware provides hardware decoding, encoding and transcoding capabilities. However, playback quality may vary due to factors including playback software, file formats, system usage, and available bandwidth.

Optimized collaboration with seamless file sharing and sync

The TS-451DeU centrally stores data and files, and supports SMB/CIFS, AFP and NFS protocols for file sharing across Windows®, Mac®, and Linux®/UNIX® networks. Coupled with the Qsync utility, any file uploaded to the TS-451DeU will be made available for all linked devices (such as computers, laptops and mobiles). You can sync shared folders and team folders for group file sharing to enhance the flexibility of team projects and collaboration. With the myQNAPcloud service, you can easily and securely connect to the TS-451DeU via the Internet for accessing, managing, and sharing NAS files. The Windows AD® and LDAP services enable system administrators to configure user permissions by using an existing Windows AD® server, LDAP server, or the TS-451DeU’s built-in LDAP service.

Learn More: Cross-platform file sharing, myQNAPcloud service

High-speed VM Backup Solution

With Hyper Data Protector, the TS-451DeU becomes an agentless backup tool for unlimited VMware® vSphere and Microsoft® Hyper-V VM backup. Hyper Data Protector features incremental backup, global deduplication, backup scheduling and recovery compression that provides you with a cost-effective and reliable disaster recovery plan, ensuring 24/7 operation of your services.

Learn More: Hyper Data Protector

Notes: QNAP NAS must be running QTS version 4.3.6 or later

All-in-one server to host virtual machines and containers

Regardless of your virtualization needs, you can count on Virtualization Station and Container Station for complete virtualization support. You can use Network & Virtual Switch to allocate adequate physical network resources to virtual machines, containers, and the NAS to simplify network deployment.

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  Run multiple Windows®, Linux®, UNIX®, and Android™ virtual machines and access them via a web browser or Virtual Network Computing (VNC). Businesses can run virtualized server applications on a single NAS without the need for additional physical servers.

  Learn More: Virtualization Station, P2V

• 

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

  Learn More: Container Station, QIoT Containers

More productivity applications

• 

  QVR Pro

  Upgrade the TS-451DeU to 4 GB RAM to use QVR Pro - a professional and affordable video surveillance system.

  Learn More: QVR Pro

• 

  Notification Center

  Consolidates all QTS system events, alerts, and notifications for smooth and easy NAS management, keeping you always informed of your NAS status.

  Learn More: Notification Center

• 

  Security Counselor

  A security portal for checking weaknesses and providing recommendations for enhancing NAS security. It also integrates anti-virus and anti-malware scanning software.

  Learn More: Security Counselor

• 

  Boxafe

  Backs up or sync files, emails, calendars and contacts from Google™ Workspace and Microsoft® Office 365® into the NAS to safeguard enterprise cloud data.

  Learn More: Boxafe

• 

  Qsirch

  QNAP’s powerful, Google-like search tool quickly finds images, music, videos, documents, and emails by keyword, color, and other search conditions.

  Learn More: Qsirch

• 

  Proxy Server

  Use the high-capacity TS-451DeU as a proxy server to efficiently access online resources, save bandwidth, and enhance network security.

  Learn More: Proxy Server

Flexible and economical storage expansion

QNAP provides easy storage capacity expansion solutions. Here are several ways to expand your TS-451DeU storage as needed 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.

  Learn More: Online RAID capacity upgrade

• 

  Attach Expansion Enclosures

  Connect two 4-bay TR-004 RAID expansion enclosures, or one 8-bay TL-D800C/12-bay TL-R1200S-RP USB 3.2 Gen 2 JBOD, and use the QTS Storage & Snapshots Manager to easily handle NAS capacity expansion.

  Learn More: Storage expansion compatibility

• 

  Migrate to a New NAS

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

  Learn More: Migrating from An old NAS

Extend hardware warranty up to 5 years

The TS-451DeU is backed by a 3-year warranty at no additional cost. You can purchase a warranty extension that extends your warranty coverage up to 5 years.

Learn More: QNAP warranty services