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DiskStation Plus · DS425+
Synology DiskStation DS425+ 4-bay NAS
A compact storage hub with 100% data ownership
Sold diskless. Add compatible drives below and we will ship everything together.
- Australian stock, GST tax invoice
- Genuine Synology, full local warranty
- Dispatched in 1 business day when in stock
- Ask a question about this model
- Processor
- Intel Celeron J4125
- Memory
- 2 GB DDR4 non-ECC
- Bays
- 4 × 3.5" SATA HDD or 2.5" SATA SSD 2 × M.2 2280 NVMe SSD
- 1GbE LAN ports
- 1
- 2.5GbE LAN ports
- 1
About the DS425+
The DS425+ delivers powerful functionality in a compact 4-bay, desktopfriendly design. Built-in 2.5GbE networking provides excellent network speeds out of the box. Powered by Synology DiskStation Manager (DSM), the DS425+ serves as a versatile all-in-one solution for data sharing, synchronization, backup, and surveillance.3-year hardware warranty, extendable to 5 years with EW201 ( additional purchase)
Key points
- 4-bay desktop NAS
- Intel Celeron J4125 4-core processor
- 2 GB DDR4 memory (expandable to 6 GB)
- Dual network connectivity with 1GbE and 2.5GbE RJ-45 ports
- Supports SSD cache and M.2 NVMe SSD storage pools
- Two built-in M.2 2280 NVMe SSD slots
- Supports Synology Hybrid RAID (SHR), RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10
- Supports up to 108 TB single volume capacity
Specifications
As published by Synology for the DS425+. Confirm the latest data sheet before relying on a figure for a tender.
| CPU | |
|---|---|
| CPU Model | Intel Celeron J4125 |
| CPU Quantity | 1 |
| CPU Cores | 4 |
| CPU Threads | 4 |
| CPU Architecture | 64-bit |
| CPU Frequency | 2.0 (base) / 2.7 (turbo) GHz |
| Memory | |
| System Memory | 2 GB DDR4 non-ECC |
| Total Memory Slots | 1 |
| Maximum Memory Capacity | 6 GB (2 GB + 4 GB) |
| Storage | |
| Drive Bays | 4 × 3.5" SATA HDD or 2.5" SATA SSD 2 × M.2 2280 NVMe SSD |
| External Ports | |
| RJ-45 1GbE LAN Port | 1 |
| RJ-45 2.5GbE LAN Port | 1 |
| USB 3.2 Gen 1 Port | 2 |
| Appearance | |
| Size (Height × Width × Depth) | 166 mm × 199 mm × 223 mm |
| Weight | 2.18 kg |
| Others | |
| System Fan | 92 mm × 92 mm × 2 pcs |
| Fan Speed Mode | Full-Speed Mode Cool Mode Quiet Mode |
| Noise Level | 21.6 dB(A) |
| Power Supply Unit / Adapter | 90 watts |
| AC Input Power Voltage | 100V to 240V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power Consumption | 28.25 watts (Access) 6.10 watts (HDD Hibernation) |
| British Thermal Unit | 96.33 BTU/hr (Access) 20.79 BTU/hr (HDD Hibernation) |
| Temperature | |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
| Operating Humidity | 8% to 80% RH |
| Storage Humidity | 5% to 95% RH |
| Warranty | |
| Maximum Single Volume Size | 108 TB |
| Maximum Internal Volume Number | 32 |
| Supported RAID Type | Synology Hybrid RAID Basic JBOD RAID 0 RAID 1 RAID 5 RAID 6 RAID 10 |
| RAID Migration | Basic to RAID 1 Basic to RAID 5 RAID 1 to RAID 5 RAID 5 to RAID 6 |
| Volume Expansion with Larger HDDs | Synology Hybrid RAID RAID 1 RAID 5 RAID 6 RAID 10 |
| Volume Expansion by Adding a HDD | Synology Hybrid RAID JBOD RAID 5 |
| Global Hot Spare Supported RAID Type | Synology Hybrid RAID RAID 1 RAID 5 |
| Internal Drives | Btrfs ext4 |
| External Drives | Btrfs ext4 ext3 FAT32 NTFS HFS+ exFAT |
| File Protocol | SMB AFP NFS FTP WebDAV Rsync |
| Maximum Number of SMB Connections (FSCT-Based) | 10 |
| Maximum Local User Accounts | 512 |
| Maximum Local Groups | 128 |
| Maximum Shared Folder | 128 |
| Maximum Shared Folder Sync Tasks | 4 |
| Hybrid Share Folder Number | 10 |
| Syslog Events per Second | 800 |
| Virtualization | |
| VMware vSphere | ESXi 8.0 U2, ESXi 8.0 U1, ESXi 8.0, ESXi 7.0 U3, ESXi 7.0 U2, ESXi 7.0 U1, ESXi 7.0, ESXi 6.7 U3, ESXi 6.7 U2, ESXi 6.7 U1, ESXi 6.7, ESXi 6.5 U3, ESXi 6.5 U2, ESXi 6.5 U1, ESXi 6.5 |
| Microsoft Hyper-V | Windows Server 2025, Windows Server 2022 |
| Citrix XenServer | XenServer 8, Citrix Hypervisor 8.2 LTSR CU1 |
| OpenStack | Cinder |
| Supported Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
| Supported Browsers | Chrome Firefox Edge Safari |
| Supported Language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 |
| Maximum Number of Users | 100 |
| Download Station | |
| Maximum Concurrent Download Tasks | 80 |
| Maximum iSCSI Target Number | 2 |
| Maximum LUN | 4 |
| Free Email Accounts | 5 |
| Maximum Number of Users | 20 |
| Maximum Snapshots per Shared Folder | 128 |
| Maximum Snapshots per LUN | 32 |
| Maximum Snapshots per System | 1,024 |
| Maximum Replication Tasks for Shared Folders | 16 |
| Maximum Replication Tasks for LUNs | 8 |
| Maximum Replication Tasks per System | 16 |
| Default Licenses | 2 |
| Maximum IP Cameras and Total FPS (H.264) | 1080p: 40 channels, 800 FPS 3M: 35 channels, 350 FPS 5M: 28 channels, 280 FPS 4K: 17 channels, 170 FPS |
| Maximum IP Cameras and Total FPS (H.265) | 1080p: 40 channels, 1200 FPS 3M: 40 channels, 600 FPS 5M: 40 channels, 480 FPS 4K: 20 channels, 200 FPS |
| Maximum Number of Users | 20 |
| Maximum Number of Hosted Files | 500,000 (applies to files indexed or hosted by . For file access through other standard protocols, refer to the File Services section above) |
| Maximum Number of Users | 20 |
| Recommended Virtual Machine Instances | 2 |
| Recommended Virtual DSM Number | 2 (including 1 Free License) |
| Maximum Connections | 4 |
Shipping
In-stock items leave our Australian warehouse within one business day. Order-in items usually arrive in 3 to 7 business days from the distributor. Shipping is calculated at checkout from the weight of your order (this item: 4.7 kg).
Shipping detailsWarranty
Genuine Australian stock with Synology's manufacturer warranty, serviced locally. Most Plus and xs+ models carry a three or five year warranty and are eligible for EW201/EW202 extension.
Returns and warrantyNeed a hand?
We will confirm compatibility with your existing NAS, recommend drives and memory, or quote a configured unit for a business site.
Ask belowAsk about the DS425+
Compatibility, lead times, a quote for several units: a person replies, usually the same business day.
Complete the system
Drives, memory and expansion that fit this model.



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