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Synology DiskStation DS423+ NAS Server with Celeron 2.0GHz CPU, 6GB Memory, 40TB HDD Storage, 1TB M.2 NVMe SSD, 2 x 1GbE LAN Ports, DSM Operating System
Synology

Synology DiskStation DS423+ NAS Server with Celeron 2.0GHz CPU

Bottom line: The Synology DiskStation DS423+ NAS Server with Celeron 2.0GHz CPU is a specs-and-price decision rather than a crowd-consensus one in the external storage category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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

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

Pros & Cons

Pros

  • ✓ Operating System: Synology DSM Software
  • ✓ Backed by Synology's warranty and support channels

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Synology DiskStation DS423+, made for a variety of server roles, such as backup, file storage, email servers, and domain controllers!Form Factor: NAS Tower ServerInternal File System Format: EXT4, BtrfsPorts: 2 x RJ-45 1GbE (with Link Aggregation/ Failover support); 2 x USB 3.2 Ports; Btrfs File System for Advanced LUN iSCSI ServiceProcessor: Celeron J4125 4-Core 2.0GHz CPU, Up To 2.7GHz TurboMemory: 6GB DDR4 non-ECC SODIMM MemoryStorage: 40TB (4 x 10TB) SATA HDDs for High-Capacity Storage; 1TB (2 x 500GB) M.2 2280 NVMe SSDPower: Single Power SupplyOperating System: Synology DSM…

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SpecPicks Verdict

SpecPicks scored Synology DiskStation DS423+ NAS Server with Celeron 2.0GHz CPU using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Synology's external storage 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 external storage 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.

Key Features

  • Synology DiskStation DS423+ is made for a variety of server roles, such as home data backup, file syncing, and sharing. A high-capacity powerhouse capable of fitting into most any environment, making it easy to centralize all your multimedia collections with rigorous workloads.
  • Celeron J4125 4-Core 2.0GHz CPU, Up To 2.7GHz Turbo; 6GB DDR4 non-ECC SODIMM Memory; 40TB (4 x 10TB) SATA HDDs for High-Capacity Storage; 1TB (2 x 500GB) M.2 2280 NVMe SSD; 2 x RJ-45 1GbE LAN Ports (with Link Aggregation / Failover support); 2 x USB 3.2 Ports; Btrfs File System for Advanced LUN iSCSI Service
  • Operating System: Synology DSM Software
  • Synology NAS chassis comes in a sealed box.
  • Hard drives and memory upgrades included separately, not installed, installation required.

Full Specifications

BrandSynology
TurboYes
MaterialMetal
Unit Count1 Count
ConnectivityUSB
Mounting Typefloor mount, tabletop
Storage Volume40 TB
Number of Items1
Compatible DevicesServer
Enclosure MaterialMetal
Warranty DescriptionManufacturer
Full listing titleSynology DiskStation DS423+ NAS Server with Celeron 2.0GHz CPU, 6GB Memory, 40TB HDD Storage, 1TB M.2 NVMe SSD, 2 x 1GbE LAN Ports, DSM Operating System

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Synology DiskStation DS423+ NAS Server with Celeron 2.0GHz CPU, 6GB Memory, 40TB HDD Storage, 1TB M.2 NVMe SSD, 2 x 1GbE LAN Ports, DSM Operating System 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.

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Synology DiskStation DS423+ NAS Server with Celeron 2.0GHz CPU, 6GB Memory, 40TB HDD Storage, 1TB M.2 NVMe SSD, 2 x 1GbE LAN Ports, DSM Operating System
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