A compact 4-bay NAS for shared files, backups and a personal cloud, with 2.5GbE networking and two NVMe SSD slots. Supplied without storage drives.
Technical specifications
- Model: Synology DiskStation DS425+
- Form factor: Desktop, 4-bay
- Processor: Intel Celeron J4125; 4 cores / 4 threads; 2.0–2.7 GHz; 64-bit
- Memory: 2 GB DDR4 non-ECC
- Memory expansion: 1 expansion slot; up to 6 GB (2 GB + 4 GB)
- Drive bays: 4 × 3.5″ SATA HDD / 2.5″ SATA SSD
- M.2 slots: 2 × M.2 2280 NVMe SSD; compatible SSD cache support
- Hot-swap: SATA drive bays; M.2 slots are not hot-swappable
- Network: 1 × 1GbE RJ-45 + 1 × 2.5GbE RJ-45
- USB: 2 × USB 3.2 Gen 1
- RAID: Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0/1/5/6/10
- File systems: Btrfs, ext4
- File protocols: SMB, AFP, NFS, FTP, WebDAV, Rsync
- Operating system: Synology DiskStation Manager (DSM)
- Dimensions (H × W × D): 166 × 199 × 223 mm
- Weight: 2.18 kg
- Cooling: 2 × 92 mm fans
- Power supply: 90 W
- Power consumption: 28.25 W access / 6.10 W HDD hibernation (manufacturer test)
- Input voltage: 100–240 V AC, 50/60 Hz
- Operating temperature: 0–40 °C
- Drive delivery: Diskless enclosure; HDDs and SSDs sold separately
- Included accessories: Accessory pack, AC adapter, AC power cord, 2 × RJ-45 LAN cables












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