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Synology Unveils DiskStation DS425+ for Those with Simple Network Storage Needs

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Today, Synology announced the availability of its second NAS server for 2025, the DiskStation DS425+ for the US market. It’s a four-bay server, similar to the DS925+ that was released earlier this month, but with lower hardware specifications and capabilities.

Synology DiskStation DS425+
The new Synology DiskStation DS425+ NAS server.

Synology DS425+: A straightforward 4-bay NAS server

The first thing to keep in mind is that the new server, like all Plus servers released in 2025 and later, is designed to comply with Synology’s new storage requirements. Specifically, it only works with Synology-branded drives, at least for the time being, when set up as a new server. You can, however, migrate current drives from an existing server to it during an upgrade.

Other than that, the DS425+ is straightforward. It features four front-facing drive bays to accommodate SATA drives and two M.2 slots for NVMe SSDs with up to 80TB of raw storage per Synology.

Unlike the DS925+, the DS425+ doesn’t have an expansion slot to host an expansion unit, meaning its native drive bays and M.2 slots are the only storage options available. Additionally, the new server comes with a single 2.5Gbps port and one 1Gbps port (instead of two 2.5Gbps ports). As a result, there is no chance of achieving a 5Gbps connection via Link Aggregation.

The table below compares the specifications of the DS425+ to those of the DS925+.

Synoloyg DS425+ vs. DS925+: Hardware specifications

Synology DiskStation DS425+The Synology DS925+ NAS server
Synology DS425+Synology DS925+
CPUIntel Celeron J4125
2.0 (base) / 2.7 (turbo) G
Hz
AMD Ryzen V1500B
Quad-core
2.2 GHz,
4 Cores / 8 Threads
System Memory2 GB DDR4 non-ECC
(onboard)
1x 4 GB DDR4 ECC SODIMM
(installed in one of the two memory slots)
Max Memory6 GB (2 GB + 4 GB via slot)32GB (16GB x 2)
Dimensions6.53 x 7.83 x 8.78 in
(166 x 199 x 223 mm)
Weight4.8 lbs
(2.18 kg)
4.98 lbs
(2.26 kg)
Drive Bays4
Expansion SupportNoYes
(1x USB-C-based DX525)
Drive
Interface
SATA 6Gbps/3Gbps
(hot-swappable)
Built-in M.2 Slots
(NVMe)
Two
Drive Support3.5″ SATA HDD
2.5″ SATA SSD/HDD
M.2 2280 NVMe SSD
(cache & storage)
RAID TypesHybrid RAID (SHR), Basic, JBOD,
RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Max Volume Size108TB200TB
(with 32GB of RAM),
108TB
Max Internal Volume Number32
Max SMB Connections1040
Max Shared Folder Sync Tasks48
Max Synology Chat Users100150
Max Synology Drive / Office Users2080
VPN Server – Max Connections48
Max IP Cameras Support
(two licenses included for non-Synology cameras)
2040
Ports 1x RJ-45 2.5GbE LAN,
1x RJ-45 1GbE LAN,
2x USB Gen 1 ports
2x RJ-45 2.5GbE LAN,
2x USB Gen 1 ports,
1x USB-C port (for expansion)
Expansion SlotNone
Add-on Card
(not included)
None
DiskStation Manager
(operating system)
DSM 7
File SystemInternal: Btrfs, EXT4
External: Btrfs, EXT4, EXT3, FAT, NTFS, HFS+, exFAT
Supported Drives3.5″ SATA HDD
2.5″ SATA SSD/HDD
M.2 2280 NVMe SSD
(cache & storage)
US Launch Price
(Compare street prices!)
TBD$700
Warranty3 years
Hardware specifications: Synology DS425+ vs. DS925+.

Likely a familiar Synology experience

Besides the hardware specifications above and the new drive requirements, the new DS425+ will offer a familiar NAS experience to existing servers, thanks to its use of the same DSM7 operating system.

You can expect advanced features and functionalities via different software packages or apps. However, compared to the DS925+, the new server is likely to be slightly slower and will not be able to run as many applications simultaneously due to its limited processing power.

Synology DiskStation DS425+ FrontSynology DiskStation DS425+back
The front and back of the new Synology DS425+ NAS server.

Availability and pricing

Synology announces that the DiskStation DS425+ is now available for purchase. Its current street price is $520 (diskless). Check in a while back to see how its real-world performance pans out.

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2 thoughts on “Synology Unveils DiskStation DS425+ for Those with Simple Network Storage Needs”

  1. Dong. Thank you for the post. Appreciated ! Dong, is there any chance that Synology will release a (2)25 ? this year? I do not need 4 disks, while nice to have, i can live without them. I would love to see A (2)25 ? with a 10G port, as I can run 10G between my ancient PC and a NAS.
    Thank you for your thoughts?
    Albert.

    Reply
    • Synology likely will announce a 2025 2-bay server soon. However, it will not have a 10GbE port. For that, the DS923+ is your best option, for now.

      Reply

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