4 Bay QNAP Intel Celeron J4025 Gigabit NAS Unit TS-451D2-4G

PN: TS-451D2-4G

This product is no longer avaliable.

See suggested alternative models below.

QNAP TS-451D2-4G Tower 4 Bay NAS, Diskless 4x 3.5in SATA HDD Bay, Intel Celeron J4025 2-core 2.0GHz, 4GB SODIMM DDR3 (1/2), 2x GbE, 3x USB-A 3.2g1, HDMI, SSD Cache Support

The 4-bay TS-451D2 provides high storage potential for home and small business users to store, share, and back up files. Business users can leverage its dual-core Intel processor to enable seamless multi-user on-premises/remote access to work files, while home users can enjoy a high-quality multimedia experience with both streaming and direct 4K HDMI 2.0 output. Cloud Storage Gateways allow you to leverage your existing cloud storage to deploy a hybrid-cloud solution, while a built-in App Center provides a wide range of applications to add additional functionality to the TS-451D2.

  • 4 bay qnap ts-451d2-4g intel celeron j4025 gigabit nas unit

    Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore previously-recorded data.

  • 4 bay qnap ts-451d2-4g intel celeron j4025 gigabit nas unit

    HBS provides comprehensive backup and data recovery; QuDedup deduplicates data at the source to reduce storage usage, bandwidth usage, and backup time.

  • 4 bay qnap ts-451d2-4g intel celeron j4025 gigabit nas unit

    4K media playback and real-time transcoding; directly watch videos on a TV via HDMI output or streaming app.

  • 4 bay qnap ts-451d2-4g intel celeron j4025 gigabit nas unit

    Cloud storage gateways leverage cloud services to realize hybrid cloud structure and ensure low-latency access to clouds.

  • 4 bay qnap ts-451d2-4g intel celeron j4025 gigabit nas unit

    Host virtual machines and containers to run various applications on the TS-451D2.

  • 4 bay qnap ts-451d2-4g intel celeron j4025 gigabit nas unit

    A secure private cloud that supports account protection, IP blocking, 2-step verification, encryption, and more.

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  
Encryption Engine  (AES-NI)
Hardware-accelerated Transcoding  
System Memory 4 GB SO-DIMM DDR4 (1 x 4 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
Hot-swappable  
SSD Cache Acceleration Support  
Gigabit Ethernet Port (RJ45) 2
Wake on LAN (WOL)  
Jumbo Frame  
USB 3.2 Gen 1 port 4
HDMI Output 1, HDMI 2.0 (up to 4096 x 2160 @ 60Hz)
Form Factor Tower
LED Indicators Power/Status, LAN, USB, HDD1-4
Buttons Power, USB copy, Reset
Dimensions (HxWxD) 165.3 × 160 × 219.4 mm
Weight (Net) 2.09 kg
Weight (Gross) 3.02 kg
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 External Power Adapter, 90W, AC 100-240 V
Fan 1 x 120mm, 12VDC
Sound Level 18.5 db(A)
System Warning Buzzer
Kensington Security Slot  
Max. Number of Concurrent Connections (CIFS) 800

Warranty Information


1 Year

Manufacturers Warranty

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Product - 4 Bay QNAP Intel Celeron J4025 Gigabit NAS Unit TS-451D2-4G