Choose your storage:
without hard drives
This is the one
Synology DS425+
Choose your storage:
without hard drives
According to our NAS expert
Store large business files and create backups of PCs with the Synology DS425+ NAS server. This NAS has 4 slots for hard drives and an 80TB storage space. This allows you to store backups of business laptops or PCs for your company. You can also place up to 4 SSDs of 2.5 inches or 3.5 inches in the NAS. There's also space for 2 M.2 NVMe SSDs in the DS425+. You can create various RAID setups with the NAS. This allows you to create 1 large storage space. With these hard drives, you can open frequently used files faster. Thanks to 2GB internal RAM and the Intel Celeron J4125 processor, you can use the NAS with 15 users at the same time. The NAS has 2 Ethernet ports with a 2500Mbps speed. That way, you can quickly transfer files to the DS425+.
Number of hard drive slots | 4 | |
Suitable for hard drive size | 2.5-inch HDD, 2.5-inch SSD, 3.5-inch HDD | |
Internal RAM | 2 GB | |
Processor cores | Quad-Core (4) | |
Built-in hard drive |
5 stars
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4 stars
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3 stars
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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 Dutch
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 Dutch
Current product
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Retail price
€ 543,29€ 506,90
Retail price
€ 629,99€ 594,99
Retail price
€ 590,-€ 564,90
Retail price
€ 845,79€ 800,90
Retail price
€ 546,-€ 493,90
4
4
4
5
6
2.5-inch HDD, 2.5-inch SSD, 3.5-inch HDD
2.5-inch SSD, 3.5-inch HDD, M.2 NVMe
2.5-inch SSD, 3.5-inch HDD, M.2 NVMe
2.5-inch SSD, 3.5-inch HDD, M.2 NVMe
M.2 NVMe
Quad-Core (4)
Penta-Core (5)
Quad-Core (4)
Quad-Core (4)
Quad-Core (4)
No
No
No
No
No
With Coolblue Extended Warranty, you are protected against costs due to quality defects of your NAS for the next 4 years. During the entire term, we will reimburse up to the original purchase price. You can easily add the Extended Warranty in your shopping cart.
€ 24,99
one-timeAdd your NAS to your shopping cart. In the next step, you can add the Extended Warranty. You can exchange or return your purchase for free within 30 days.
Product number | 966925 |
Manufacturer code | DS425+ |
Brand | Synology |
Warranty | 3 years |
Processing of your defect | Via Coolblue |
Built-in hard drive | ||
Number of hard drive slots | 4 | |
Suitable for hard drive size | 2.5-inch HDD, 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 |
