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Application for QM2 SSD slots:
- Create a volume on these SSD and use them as extra storage
- Enable Read Cache
- Enable Read/Write Cache
- Enable Qtier feature
- Boost performance in case of memory swapping
QNAP TS-451DeU fully integrated and tested complete NAS solution with 4 x ST8000VN004 - 8TB Seagate IronWolf SATA 6Gb/s 7200 RPM 256MB Cache 3.5" hard drives for 32TB total capacity, Qbit tested, shipped RAID Ready to use out of the box. 1U 4-Bay 11.6"-depth NAS, Intel Celeron J4025 dual-core 2.0GHz (up to 2.9GHz), 2GB DDR4 SODIMM RAM (1x2GB, 2 slots, max 8GB total) SATA 6Gb/s, 2 x 2.5GbE, AES-NI encryption, 2 x USB 3.0, 2 x USB 2.0, hardware transcoding, max 1 TL-D800C or 2 x TR-002/TR-004 expansion unit, single power 100W.
The compact and feature-rich TS-451DeU combines an Intel® Celeron® dual-cord 2.0 GHz processor and 2.5GbE connectivity in one chassis, providing businesses with a modern 2.5GbE NAS solution to tackle everyday tasks like file backup/restore, and to boost team collaboration with higher productivity. The space-efficient short depth design makes it easy to install in small media cabinets or places with a lot of cabling. Supporting abundant business and media applications (including file sharing and sync, snapshot protection, virtual machines, cloud storage gateways, video streaming and real-time transcoding) alongside expandable storage capacity and install-on-demand apps, the TS-451DeU is an ideal cost-effective entry-level rackmount NAS.
Up to 5 Gbps transfer speeds can be made by setting port trunking with the two built-in 2.5GbE ports.s.
Dual M.2 2280 SATA 6Gb/s SSD slots allows tool-less SSD installation, and supports SSD caching to increase IOPS performance.
HBS provides comprehensive backup and data recovery; QuDedup deduplicates the data at the source to reduce storage space usage, bandwidth usage, and backup time.
Supports Plex® media server with hardware transcoding for an optimal multimedia experience.
Hosts multiple virtual machines and containers to run a wide range of applications on one NAS device.
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.
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.
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!
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.|
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 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.|
The TS-451DeU provides a reliable, flexible backup and disaster recovery solution to simplify routine backup jobs cost-efficiently and with high productivity.
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
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).
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
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.
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.
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.
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.
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.
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.
Experience LXC and Docker® lightweight virtualization technologies, download apps from the built-in Docker Hub Registry®, import and export containers, and create abundant microservices.
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.
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
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
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
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
|CPU||Intel® Celeron® J4025 dual-core 2.0 GHz processor (burst up to 2.9 GHz)|
|CPU Architecture||64-bit x86|
|Graphic Processors||Intel® HD Graphics 600|
|Floating Point Unit|
|System Memory||2 GB SO-DIMM DDR4 (1 x 2 GB)|
|Maximum Memory||8 GB (2 x 4GB)|
|Memory Slot||2 x SO-DIMM DDR4
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 https://www.qnap.com/compatibility/
|Drive Compatibility||3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
|M.2 SSD Slot||2 x M.2 2280 SATA 6Gb/s slots|
|SSD Cache Acceleration Support|
|2.5 Gigabit Ethernet Port||2|
|USB 2.0 port||2|
|USB 3.2 Gen 1 port||2|
|Form Factor||1U Rackmount|
|LED Indicators||Power/Status, LAN, USB, HDD1-2, M.2 SSD 1-2|
|Dimensions (HxWxD)||1.7 × 16.93 × 11.61 inch|
|Weight (Net)||9.15 lbs|
|Weight (Gross)||12.76 lbs|
|Operating temperature||0 - 40 °C (32°F - 104°F)|
|Relative Humidity||5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)|
|Power Supply Unit||100W PSU, 100-240V|
|Power Consumption: HDD Sleep Mode||13.18 W|
|Power Consumption: Operating Mode, Typical||28.02 W|
|Fan||3 x 40mm|
|Sound Level||21.6 db(A)|
|Kensington Security Slot|
|Max. Number of Concurrent Connections (CIFS)||800|
Application for QM2 SSD slots:
Configured system orders start here!
The selected drives are batch controlled and tested using our HDD and SSD servers. Passed drives are then installed in the NAS with Volume and RAID set. Our pre-burn testing prepares the NAS with an initial system and drive testing cycle to ensure that the integrity of the entire system is tested and passed with no issues at all.
Our stress testing (burn-test) cycle commences for a minimum of 24 hours and extends to 48 hours if requested or required. This is undertaken in order to ensure stability when used in a normal environment. These tests can include extremes of workload (constant I/O's), CPU and memory use, thermal load (heat), clock speed, or voltages, bus and connectivity components, with the primary stress testing software aiming to test stability by trying to force a system to fail. Our tests put a greater emphasis on robustness, availability and error handling heavy loads.
Once the tests are complete we QA and pack the system back into it's retail box. Then it's double boxed to protect the unit during shipping. You receive your QNAP NAS Ready To Plug 'N' Store. It doesn't get any easier. Buy your NAS from the QNAP EXPERTS at QNAP DIRECT.