QNAP TS-673A vs Synology DS1621+ NAS: A Detailed Comparison Guide


QNAP TS-673A vs Synology DS1621+ NAS: A Detailed Comparison Guide - ACE Peripherals

The Ultimate Showdown: QNAP TS-673A vs Synology DS1621+ NAS Comparison

In the world of network-attached storage (NAS), two models often come up for discussion: the QNAP TS-673A and the Synology DS1621+. Both are powerful, feature-rich NAS solutions designed for businesses and tech-savvy users. In this article, we'll dive deep into a comprehensive comparison of these two models, exploring their strengths, weaknesses, and ideal use cases.

Comparison Table

Feature QNAP TS-673A Synology DS1621+
Operating System QuTS Hero DSM
CPU AMD Ryzen Embedded V1500B 4-core / 8-thread / 2.2 GHz AMD Ryzen Embedded V1500B 4-core / 8-thread / 2.2 GHz
System Memory 8 GB 4 GB
Drive Bay 6 x 3.5” & 2.5” SATA HDD / SSD 6 x 3.5” & 2.5” SATA HDD / SSD
M.2 SSD Slot 2 x PCIe Gen3 x1 2 x NVMe
LAN Port 2 x 2.5GbE 4 x 1GbE
PCIe Slot 2 x Gen 3 x4 1 x Gen3 x8
USB Port 3 x 3.2 Gen 2, 1 x 3.2 Gen 1 3 x 3.2 Gen 1
Max Scalable Storage with Expansion Units 1.1 PB 352 TB



  • High-Performance Processor: With its AMD Ryzen V1000 series V1500B processor, the TS-673A offers robust performance for demanding applications.
  • Flexible Connectivity: The inclusion of 2.5GbE ports and PCIe slots enhances networking and storage expansion capabilities.
  • Versatile Applications: From virtualization to GPU applications, the TS-673A is a jack-of-all-trades.

Synology DS1621+

  • Compact and Scalable: The DS1621+ offers a compact form factor yet can expand up to 16 drives.
  • Intuitive File Management: Synology's File Station makes file management and sharing easy and user-friendly.
  • Ultimate Backup Solution: It integrates various backup applications, providing a comprehensive solution for data protection.

Pros and Cons


  • Pros:
    • Advanced hardware specifications for high-end tasks.
    • Greater scalability in terms of storage capacity.
    • Supports both QTS and QuTS hero operating systems.
  • Cons:
    • Potentially more complex for beginners.
    • Higher cost compared to some alternatives.

Synology DS1621+

  • Pros:
    • User-friendly interface, suitable for beginners.
    • Efficient performance in file management and sharing.
    • More affordable option with essential features.
  • Cons:
    • Less scalability in terms of overall storage capacity.
    • Limited in advanced application scenarios compared to TS-673A.

Imagine a small business with growing data storage needs. The QNAP TS-673A could be ideal for their diverse requirements, offering high-performance capabilities and significant scalability. On the other hand, a home office or small studio might find the Synology DS1621+ more appealing for its simplicity, ease of use, and efficient file management capabilities.


Both the QNAP TS-673A and Synology DS1621+ stand out in their respective areas. The choice between them depends on specific needs: high-end, scalable, and versatile functionalities for TS-673A, or compact, user-friendly, and cost-effective solutions for DS1621+.


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