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Synology DiskStation DS423 4-Bay 3.5 Diskless 2xGbE NAS, Realtek RTD1619B 4-core (4-thread) 1.7 GHz, 2GB RAM, 3 x USB3.2 - 2 Yr - Launch 15March | DiskStation Manager | Private cloud, file sharing, backup and multimedia storage for home and business.
Synology

Synology DiskStation DS423 4-Bay 3.5 Diskless 2xGbE NAS

Bottom line: The Synology DiskStation DS423 4-Bay 3.5 Diskless 2xGbE NAS ($428.29 on Amazon as of 2026-10-20 16:16 UTC): Four 3.5-inch bays diskless, so you pick your own drive capacity; main trade-off: 2GB RAM is modest for heavy app or container workloads.

$428.29

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Buy on Amazon — $428.29 Compare to similar nas & home servers

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For NAS and home-server hardware, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Four 3.5-inch bays diskless, so you pick your own drive capacity
  • ✓ Quad-core Realtek RTD1619B at 1.7 GHz handles multi-user file serving
  • ✓ Dual Gigabit Ethernet ports support link aggregation and failover
  • ✓ Three USB 3.2 ports for external backup drives and expansion
  • ✓ Runs DiskStation Manager for private cloud, sharing, and backup apps

Cons

  • ✗ 2GB RAM is modest for heavy app or container workloads
  • ✗ Realtek RTD1619B lacks hardware transcoding for demanding media streams
  • ✗ 2-year warranty is shorter than the 3-5 years on higher-tier NAS lines
  • ✗ No 2.5GbE or 10GbE, so throughput caps around dual Gigabit

Manufacturer description

Four bay desktop NAS perfect for storage and data security in your home or office.

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SpecPicks Verdict

SpecPicks scored Synology DiskStation DS423 4-Bay 3.5 Diskless 2xGbE NAS using a rating × review-volume × price-fit model applied to published specs and reviews across the nas & home servers category. Synology's nas & home servers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Full Specifications

BrandSynology
ColorBlack
Model NameDS423
Read Speed445 bytes_per_second
Unit Count1 count
Form Factor3.5-inch
Media Speed224 MB/s
Model NumberDS423
Mfr Part Number29DS423
Number of Items1
Special FeaturePortable
Installation TypeExternal Hard Drive
Compatible DevicesDesktop
Data Transfer Rate1 megabytes_per_second
Enclosure MaterialMetal
Additional FeaturesPortable
Hard Disk InterfaceUSB 3.2
Hard Disk DescriptionMechanical Hard Disk
Hard Disk Form Factor3.5 inches
Hardware ConnectivityUSB
Full listing titleSynology DiskStation DS423 4-Bay 3.5 Diskless 2xGbE NAS, Realtek RTD1619B 4-core (4-thread) 1.7 GHz, 2GB RAM, 3 x USB3.2 - 2 Yr - Launch 15March | DiskStation Manager | Private cloud, file sharing, backup and multimedia storage for home and business.

Ready to buy?

Synology DiskStation DS423 4-Bay 3.5 Diskless 2xGbE NAS, Realtek RTD1619B 4-core (4-thread) 1.7 GHz, 2GB RAM, 3 x USB3.2 - 2 Yr - Launch 15March | DiskStation Manager | Private cloud, file sharing, backup and multimedia storage for home and business. is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $428.29

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

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Synology DiskStation DS423 4-Bay 3.5 Diskless 2xGbE NAS, Realtek RTD1619B 4-core (4-thread) 1.7 GHz, 2GB RAM, 3 x USB3.2 - 2 Yr - Launch 15March | DiskStation Manager | Private cloud, file sharing, backup and multimedia storage for home and business.
$428.29
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