Synology

Synology DiskStation DS423+

D
Ranked #14 in NAS Devices
254 LP on the category ladder what's LP?

An aging 4-bay Plus caught between the brand backlash How-To Geek documents and Macworld's redirection to the DS925+, with TechRadar's F4-424 Pro outclassing it on hardware. Buy the F4-424 Pro or DS925+.

Consolidated from 4 independent outlets

Where the cited sources landed, as we read them

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Flagged as a product to avoid

3 of 4 research runs entered this as a product to avoid rather than a pick.

An aging previous-generation 4-bay Plus caught between the brand backlash How-To Geek documents and Macworld's redirection of 4-bay shoppers to the DS925+, while TechRadar's top choice, the TerraMaster F4-424 Pro, outclasses it on hardware.

Flagged 23 September 2026
  1. An aging previous-generation 4-bay Plus caught between the brand backlash How-To Geek documents and Macworld's redirection of 4-bay shoppers to the DS925+, while TechRadar's top choice, the TerraMaster F4-424 Pro, outclasses it on hardware.

    Flagged 23 September 2026
  2. Outclassed at its position; newer Synology models and TerraMaster’s hardware-focused offering outperform it, and expert sentiment has moved away from mainstream Synology boxes.

    Flagged 23 September 2026
  3. An aging four-bay that has been superseded by Synology's 2025-series Plus line, kept alive by brand loyalty while the expert narrative turns against the platform. Buyers still default to it out of habit.

    Flagged 23 September 2026

Why the boards include products to avoid

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Pros & cons

  • ✓ Four bays of growth room in the Plus body
  • ✓ DSM software longevity and Synology build quality
  • ✓ Sits in the tier mainstream guides crown as headliners
  • ✗ Previous-generation 4-bay Plus that buyers still cross-shop
  • ✗ Caught in the backlash against Synology's mid-range hardware value
  • ✗ Current guides route 4-bay money to the DS925+ or the F4-424 Pro instead
  • ✗ Outclassed by newer Synology and TerraMaster models
  • ✗ Expert sentiment has moved away from Synology

The sources behind this ranking

We searched the web and YouTube for what has been published about this product, then read the articles, video transcripts and comments we found. 2 outlets wouldn't let us check their links. We quote no words from these sources, so each row shows only where we placed it.

Frequently asked questions

It ranks #14 of 22 on our NAS devices tier list, in D tier. That placement draws on 4 independent outlets.

Previous-generation 4-bay Plus that buyers still cross-shop. Caught in the backlash against Synology's mid-range hardware value. Current guides route 4-bay money to the DS925+ or the F4-424 Pro instead. Outclassed by newer Synology and TerraMaster models. Expert sentiment has moved away from Synology.

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