Synology

Synology DS425+ 4-Bay Desktop NAS with 32TB Storage

A four-bay Plus-series NAS that pairs 32TB of Synology storage with 2.5 GbE networking and dual NVMe slots for caching flexibility

$3,499.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Aug 01, 2026.Price and availability are subject to change.

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Overview

The Synology DS425+ arrives as a fresh addition to the Plus series, a lineup that has long served buyers who want more than a basic two-bay box. This is a four-bay desktop unit aimed at households with growing media collections, small offices consolidating shared files, and creators who need dependable storage for large projects. The 32TB configuration bundles Synology's HAT3310-8T drives, so the storage pool is populated from day one. Powering it all is an Intel Celeron J4125, a quad-core processor with enough headroom to juggle file serving, scheduled backups, and a handful of lightweight applications at the same time.

On the hardware side, the DS425+ shows its intentions clearly. It starts with 2GB of DDR4 non-ECC SODIMM memory and accepts an additional 4GB module to reach 6GB, using Synology's D4NS01-4G part. Networking combines a 2.5 GbE RJ-45 port with a 1 GbE port, a practical mix that rewards users on modern switches while keeping a second connection available. Two M.2 2280 NVMe slots round out the design, offering the choice between SSD caching for snappier access to hot data or a dedicated NVMe storage pool. As a four-bay chassis, it leaves room to expand or restructure arrays as demands shift, making it a sensible long-term anchor for a home or business network.

Key Features

New model of the Plus series with 4 bays and an Intel Celeron J4125 quad-core processor

· 2GB DDR4 Non-ECC SODIMM (upgradable to 6GB with an additional 4GB module)

· Supports new memory module: D4NS01-4G

· 1 × 2.5 GbE and 1 × 1 GbE RJ-45 LAN ports

· Two M.2 2280 NVMe slots for caching or storage pool creation

Specifications

Brand
Synology
Model
DS425+
Series
Plus series
Form Factor
4-bay desktop NAS
Processor
Intel Celeron J4125 quad-core
Included Storage
32TB (Synology HAT3310-8T drives)
Memory
2GB DDR4 non-ECC SODIMM
Maximum Memory
6GB (with additional 4GB D4NS01-4G module)
Compatible Memory Module
D4NS01-4G
Network Ports
1 × 2.5 GbE and 1 × 1 GbE RJ-45
M.2 Slots
Two M.2 2280 NVMe (caching or storage pool)

Frequently Asked Questions

This configuration includes 32TB of capacity supplied by Synology's own HAT3310-8T drives across its four bays, so it is ready to set up without buying disks separately.
Yes. It starts with 2GB of DDR4 non-ECC SODIMM and upgrades to 6GB total by adding a compatible 4GB D4NS01-4G module.
It does. The unit includes one 2.5 GbE RJ-45 port alongside a standard 1 GbE port, so networks with 2.5 GbE equipment can exceed gigabit speeds.
The two M.2 2280 NVMe slots can be used for SSD caching to speed up frequently accessed files or configured as a separate NVMe storage pool.
It runs on an Intel Celeron J4125 quad-core processor, which handles file serving, backups, and lightweight applications for home and small-office use.
Yes, it is a new model in the Plus series and features four drive bays, positioning it above entry-level Synology units in capacity and expandability.