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
1
3 stars
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2 stars
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1 star
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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
Current product
Â
Â
Â
Â
525,-
618,-
631,-
Retail price UGREEN
499,99468,-
814,-
4
4
4
4
5
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 HDD, 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
2 GB
8 GB
4 GB
8 GB
8 GB
Quad-Core (4)
Penta-Core (5)
Quad-Core (4)
Quad-Core (4)
Quad-Core (4)
No deductible
For almost all accidents
More coverage in case of damage than your standard warranty
Coolblue takes care of everything, from taking out an insurance to repairs
First, add your NAS to your shopping cart. On the next page, choose the Protection Plan below. You always have a 30-day return window and pay no deductible in case of damage.
2-year Protection Plan
12,99
one-time3-year Protection Plan
22,99
one-timeProduct number | 966925 | |
Manufacturer code | DS425+ | |
Brand | Synology | |
Warranty | 3 years | |
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 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 |