Synology

Synology DS925+ 4-Bay Desktop NAS Bundle with 40TB Drives

A ready-to-run 4-bay NAS bundle arriving with 40TB of hard drives preinstalled and dual 2.5GbE networking built in

$2,799.00*
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*Price sourced from Amazon.com. Last updated:Aug 09, 2026.Price and availability are subject to change.

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Overview

The Synology DS925+ bundle takes much of the guesswork out of setting up network storage by arriving with four 10TB hard drives already accounted for, adding up to 40TB of raw capacity. Positioned as the successor to the DS923+, this four-bay desktop unit is aimed at households and small offices that want a central home for files, photos, and backups without sourcing drives separately. It leans on Synology's DSM software ecosystem, which folds in file and photo management, data protection, virtualization, and monitoring tools under one interface.

On the hardware side, the DS925+ pairs dual 2.5GbE ports with a quoted throughput of up to 522/565 MB/s sequential read and write, a step beyond the gigabit networking common at this tier. The two ports also open the door to link aggregation or failover for added redundancy. Storage needs rarely stand still, and the DS925+ answers that with support for the DX525 expansion unit, stretching the system to nine bays and as much as 180TB. Practical ownership details round out the picture: a three-year limited hardware warranty that extends to five years in select markets, and, as of DSM 7.3, compatibility with third-party drives alongside Synology's own.

Key Features

Reliable performance - up to 522/565 MB/s sequential read/write throughput for stable data transfers

Fast and flexible networking - Two 2.5GbE ports provide fast network speeds and improved redundancy

Versatile network storage: includes file and photo management, data protection, virtualization, and monitoring features

Capacity Expansion - Expand up to 9 bays with the DX525 for up to 180TB of storage

Expandable product support - 3-year limited hardware warranty, expandable to 5 years in select markets

Successor model of the DS923+. Since DSM 7.3 also compatible with third-party drives

Specifications

Brand
Synology
Model
DS925+
Form Factor
4-Bay Desktop NAS
Included Storage
40TB (4 x 10TB Hard Drives)
Memory
4GB RAM
Networking
Two 2.5GbE Ports
Sequential Read/Write
Up to 522/565 MB/s
Expansion
Up to 9 bays / 180TB with DX525
Warranty
3-year limited, expandable to 5 years in select markets
Predecessor
DS923+
Drive Compatibility
Third-party drives supported since DSM 7.3

Frequently Asked Questions

Yes. This bundle ships with four 10TB hard drives for 40TB of raw capacity, so the four bays are populated out of the box rather than requiring separate drive purchases.
It includes two 2.5GbE ports, offering faster-than-gigabit speeds plus improved redundancy. Synology rates sequential throughput at up to 522/565 MB/s read and write.
Yes. With the optional DX525 expansion unit, the DS925+ scales up to nine bays and as much as 180TB total, giving room to grow well past the bundled 40TB.
Yes. As the successor to the DS923+, the DS925+ supports third-party drives since DSM 7.3, in addition to Synology's own drive lineup.
Through Synology's DSM, it offers file and photo management, data protection, virtualization, and monitoring tools, all managed from a single storage interface.
It carries a three-year limited hardware warranty. In select markets, that coverage can be extended to five years for longer-term protection.