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QNAP Introduces 4-bay TS-451D2 Intel J4025 Dual-core NAS


Staff member
Mar 31, 2020
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QNAP Systems, Inc. today launched the four-bay TS-451D2 NAS, a data management solution with high storage potential for home and small business users. The TS-451D2 is powered by an Intel Celeron J4025 dual-core 2.0 GHz processor (burst up to 2.9 GHz) and is available with 2 GB or 4 GB DDR4 memory (supports up to 8 GB dual-channel). The TS-451D2 also features Intel AES-NI encryption, 4K media streaming, real-time transcoding, and 4K HDMI 2.0 output, delivering a seamless multimedia experience while emphasizing data security.

"With high performance, power saving, storage expandability, and multi-functional capabilities, the TS-451D2 is a great choice for digital homes and businesses looking for file management and remote access solutions," said Jason Hsu, Product Manager at QNAP, adding "the TS-451D2 can also serve as an multimedia server and allows for easy remote access using a wide range of companion mobile apps."

The TS-451D2 features four USB 3.2 Gen1 ports and two Gigabit Ethernet ports for greater connectivity to help streamline workflows. Block-based LUN snapshots provide comprehensive data protection and restoration to help protect against ransomware threats. HBS (Hybrid Backup Sync) provides comprehensive local/ remote/ cloud backup with the incorporation of QuDedup technology that can deduplicate data at the source to reduce storage usage, bandwidth usage, and backup time for optimized storage utilization.

The TS-451D2 has abundant multimedia functionality, making it an ideal solution for media backup, sharing and streaming. QuMagie (QNAP's AI-powered photo management app) helps users to organize their photos, HDMI 2.0 output allows for the direct playback of 4K (4096 x 2160) 60Hz videos, and 4K videos can be transcoded into universal file formats for playing on mobile devices. The TS-451D2 also supports video streaming using Plex, Smart TVs or set-top boxes with Plex Media Server or QNAP's Cinema28 applications.

The TS-451D2's front USB port provides one-touch copy functionality, allowing users to quickly backup data to/from portable storage. The storage capacity of the TS-451D2 can also be expanded by using QNAP's TR and TL series USB expansion enclosures. The built-in App Center also provides a wide range of applications to help users gain greater functionality and value from their TS-451D2: Virtualization Station can host multiple virtual machines, Container Station allows for running lightweight container applications, and QVR Pro or Surveillance Station can help build a professional-grade IP camera surveillance system.

Key specifications

  • TS-451D2-2G: 4 drive bays, 2 GB DDR4 memory (supports up to 8 GB dual-channel)
  • TS-451D2-4G: 4 drive bays, 4 GB DDR4 memory (supports up to 8 GB dual-channel)

Desktop design; Intel Celeron J4025 dual-core 2.0 GHz processor (burst up to 2.9 GHz); hot-swappable 3.5-inch SATA 6 Gbpss drive bays; 2x Gigabit RJ45 ports; 1x HDMI 2.0 4K 60Hz output; 4x USB 3.2 Gen 1 (5 Gbps) Type-A ports

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Feb 25, 2016
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System Name 11/2018
Processor I9-9900k 5ghz all cores
Motherboard Gigabyte Z390 aorus master
Cooling Custom 280mm cooling (for CPU) with noctua fans
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Storage Optane 280gb + 1tb samsung 850 pro + (raid1 6gb HDD)
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Keyboard Sharkoon purewriter (still waiting on Ducky blade...)
Software windows 10
The bigger 140mm? fan is a better choice i think, compared to the 2x 92mm from Synology.


May 22, 2015
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Processor Intel i5-6600k (AMD Ryzen5 3600 in a box, waiting for a mobo)
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The bigger 140mm? fan is a better choice i think, compared to the 2x 92mm from Synology.
It depends. With two fans, if one fails, you still have some airflow.