This is the one
Synology DS425+ + Seagate IronWolf 12TB Duo Pack
Product number | 966925 | |
|---|---|---|
Manufacturer code | DS425+ | |
Brand | Synology | |
Processing of your defect | Via Coolblue | |
Old product returned for free |
Built-in hard drive | ||
|---|---|---|
Number of hard drive slots | 4 | |
Suitable for hard drive size | 2.5-inch SSD, 3.5-inch HDD | |
RAID | Basic, JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, Synology Hybrid RAID | |
Internal RAM | 2 GB | |
Total number of RAM slots | 1 |
Connection type | Wired | |
|---|---|---|
LACP Link aggregation | ||
Thunderbolt connector | ||
Number of Ethernet ports | 2 | |
Number of 10Gbps Ethernet ports | 0 | |
Number of 2.5Gbps Ethernet ports | 1 | |
Number of 1Gb/s Ethernet ports | 1 |
NAS functions | Backup server, Database server, Download server, FTP server, Mail server, Media server, Photo server, Surveillance station, VPN server, Web server, iTunes server | |
|---|---|---|
NAS application center | ||
Plex support | ||
Type of Plex support | HD Ready (720p) | |
DLNA | ||
UPnP AV support | ||
FTP server | ||
On/off switch | ||
Automatic switch on/off | ||
Kensington lock | ||
Apple Time Machine support | ||
Chromecast support | ||
Suitable for IFTTT | ||
Recommended for use | Making a backup, Media streaming, Personal cloud |
Processor brand | Intel | |
|---|---|---|
Processor family | Celeron | |
Processor code name | Gemini Lake Refresh | |
Processor cores | Quad-Core (4) | |
Clock speed | 2 GHz |
Depth | 25,6 cm | |
|---|---|---|
Width | 24 cm | |
Height | 28,6 cm | |
Type NAS | Upright | |
Color | Black | |
Weight | 2,18 kg |
Product number | 855921 | |
|---|---|---|
Manufacturer code | ST12000VN0008 | |
Brand | Seagate | |
Processing of your defect | Via Coolblue | |
Old product returned for free |
Total storage capacity | 12 TB | |
|---|---|---|
Hard drive type | 3.5 inches |
Compatible with product type | NAS |
|---|
HDD's RPM | 7200 rpm | |
|---|---|---|
Speed class | Mid-range | |
Cache memory | 256 MB | |
Data recovery service | 3 years |
Width | 10,1 cm | |
|---|---|---|
Height | 2,6 cm | |
Depth | 14,6 cm |
According to our NAS expert
With the 2 included internal HDDs with 12TB of storage, you can get started with the NAS right away.
You can install 4 HDDs and 2 M.2 NVMe SSDs in this NAS for up to 80 terabytes of storage.
Set up different RAID configurations on this NAS.
This NAS doesn't come with SSDs.
Store your business files on the Synology DS425+ + Seagate Ironwolf 12TB Duo Pack NAS with the 2 included Seagate IronWolf 12TB internal HDDs. You place these 2 hard drives in the NAS, and you can get started right away with making backups or storing files. This NAS has 4 slots for hard drives and a maximum storage capacity of 80TB. This lets you store backups from business laptops or PCs for your company. You can also place up to 4 2.5-inch or 3.5-inch SSDs in the NAS. The DS425+ also has room for 2 M.2 NVMe SSDs. You can create different RAID setups with the NAS. This way, you can create 1 large storage space. With these drives, you can open files that you use often faster. Thanks to the 2GB internal RAM and the Intel Celeron J4125 processor, 15 users can work on the NAS at the same time. The NAS has 2 Ethernet ports with a speed of 2,500Mbps. This way, you can transfer files to the DS425+ faster.
My migration from a Synology DS415+ to this Synology DS425+ went smoothly. I transferred the existing WD Red HDDs, and they work in the new NAS (although the drive status remains "Migrated from another system"). If I wanted to add a new WD Red HDD, that's not possible (short of a hack). In that case, I'd have to opt for a Synology HDD.
Marcel
20 August 2025
Automatically translated from Nederlands
Synology just works well. I bought this to replace the DS412 and transferring everything was very easy.
Jan Janssen
12 March 2026
Automatically translated from Nederlands
Transferring drives from the DS415play to the 425+ was easy. They are Seagate and WD drives, so not officially supported by Synology, but they were immediately recognized and migrated. Data and settings were transferred without loss. DSM 7.3 was installed before the migration, so thankfully the non-Synology drives worked just fine.
Otherwise, it's a fantastic, fast NAS. I highly recommend it.
Werner Boogaard
22 November 2025
Automatically translated from Nederlands
