Synology · Released Mar 2024 Last verified June 8, 2026

Synology DS423+ Review

Name: Synology DS423+
Brand: Synology

NAS · $499

Specdex verdict Synology's Synology DS423+ is a solid premium pick — strongly recommended, even if it doesn't unseat the category leaders.

Synology's Synology DS423+ — network-attached storage.

All Synology DS423+ matchups → From $499

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Specdex verdict

Strongly Recommended

Specdex doesn't run benchmarks in-house. The verdict is an editorial assessment based on manufacturer specs and public reviewer consensus. See methodology.

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Synology DS423+ versus its closest rivals

All matchups →

Editorial · Specdex take

Pros

+Rich software ecosystem (Synology/QNAP)
+NVMe cache slots on newer models
+Docker/VM support on higher tiers

Cons

−Disks rarely included
−Drive compatibility restrictions on some brands
−Power draw 24/7

Who's the Synology DS423+ for?

Quick verdicts for the most common buyer profiles, derived from the sub-scores above.

Power users and creators Skip

Compute scores trail current top-tier — look at our step-up alternatives below if performance is the priority.

Budget-conscious buyers Buy

At $499 this is a genuine value play — Specdex score of 86 far exceeds the typical sub-$500 baseline.

In the box

What you get when you unbox the Synology DS423+.

NAS chassis
Drive bay caddies
Power adapter
Ethernet cable
Mounting screws

Standard contents — region/SKU may vary; confirm at retailer.

Sources & benchmarks

Cited, not generated

Specdex does not run benchmarks in-house. We're rolling out cited public benchmark data category by category — PassMark for CPUs and GPUs is wired today; DXOMark, RTINGS, Geekbench, and NotebookCheck will follow.

Sources we use when available: PassMark for CPU/GPU, Geekbench Browser for synthetic, DXOMark for camera scores, RTINGS for TVs, monitors, and headphones. See methodology.