Synology DS1825neo+ DiskStation 8-Bay 2.5GbE Tower NAS
High-Capacity Eight-Bay Storage with 25GbE ExpansionThe Synology DS1825neo+ is an 8-bay NAS for businesses, technical teams and media workflows that need substantial capacity and a...
High-Capacity Eight-Bay Storage with 25GbE Expansion
The Synology DS1825neo+ is an 8-bay NAS for businesses, technical teams and media workflows that need substantial capacity and a strong network upgrade path. It combines a 4-core AMD Ryzen processor, 4 GB non-ECC memory, dual 2.5GbE, two M.2 NVMe slots and PCIe support for optional 10GbE or 25GbE networking.
Highlights
High-Capacity Expansion
- Eight SATA bays plus two M.2 NVMe slots
- Expand to 18 drives with two optional DX525 units
- Up to 432 TB raw capacity after expansion
Performance and Network Choice
- Two built-in 2.5GbE LAN ports
- Optional 10GbE or 25GbE PCIe adapters
- Up to 2,239 MB/s read and 1,573 MB/s write in supported configurations
Business Data Platform
- Centralised file services and private cloud
- Backup for endpoints, servers, virtual machines and SaaS data
- Up to 40 IP cameras with Surveillance Station
Accessible neo+ Configuration
- 4 GB DDR4 non-ECC memory installed
- Two memory slots with support up to 32 GB
- Lower-cost alternative to the 8 GB ECC-equipped DS1825+
Key Features
Eight-Bay Capacity with Room to Expand
Eight hot-swappable SATA bays support flexible RAID designs for growing data sets. Two optional DX525 units extend the system to 18 drives and up to 432 TB of raw storage using 24 TB drives.
10GbE and 25GbE Upgrade Options
Dual 2.5GbE ports provide immediate multi-Gigabit connectivity, while the PCIe Gen3 slot supports selected 10GbE and 25GbE adapters. Synology test configurations reach up to 2,239 MB/s sequential read and 1,573 MB/s sequential write.
M.2 NVMe Acceleration and Storage
Two M.2 2280 NVMe slots support compatible SSDs for cache and supported SSD storage pool configurations, helping accelerate frequently accessed data or provide an all-flash working tier.
Central File Services and Collaboration
Synology Drive, Synology Office and Hybrid Share provide controlled file access, synchronisation and collaboration for teams working across devices, offices and remote locations.
Comprehensive Backup and Recovery
Active Backup Suite, Hyper Backup and Snapshot Replication cover computers, servers, virtual machines, Microsoft 365, Google Workspace and NAS data. Selected cloud services and advanced features may require separate licences or subscriptions.
Surveillance and Virtualisation
Surveillance Station supports up to 40 IP cameras and includes two device licences. Virtual Machine Manager supports up to eight virtual machines and includes one Virtual DSM licence; additional licences are sold separately.
Neo+ Memory Choice
DS1825neo+ includes 4 GB DDR4 non-ECC SODIMM memory and supports expansion to 32 GB. The standard DS1825+ ships with 8 GB ECC memory, making it more suitable where ECC protection or higher starting memory is required.
Compatibility and Support
Confirm hard drives, SSDs, memory, network adapters and expansion products against Synology's current compatibility list. Drives, SSDs, network adapters and expansion units are sold separately.
Summary
DS1825neo+ is designed for organisations that need eight-bay capacity today and a credible path to 18 drives, 25GbE networking and over 2 GB/s sequential performance. It brings Synology DSM backup, collaboration, surveillance and virtualisation tools to a scalable desktop platform while lowering the initial cost through its 4 GB non-ECC memory configuration.
Synology DS1825neo+ DiskStation 8-Bay 2.5GbE Tower NAS
The Synology DS1825neo+ is a high-capacity 8-bay desktop NAS for business file services, backup, collaboration, surveillance and demanding data workflows. It combines a 4-core AMD Ryzen V1500B processor, 4 GB DDR4 non-ECC memory, dual 2.5GbE, two M.2 NVMe slots and PCIe support for 10GbE or 25GbE networking. Two DX525 expansion units increase capacity to 18 drives and 432 TB raw. The neo+ version lowers the entry cost while retaining the DS1825+ core platform.
| Specification | Details |
|---|---|
| Processor | |
| CPU model | AMD Ryzen V1500B |
| CPU quantity | 1 |
| CPU cores / threads | 4 cores / 8 threads |
| CPU architecture | 64-bit |
| CPU frequency | 2.2 GHz |
| Hardware encryption engine | Yes |
| Memory | |
| Installed memory | 4 GB DDR4 non-ECC SODIMM |
| Pre-installed module | 4 GB (1 × 4 GB) |
| Memory slots | 2 |
| Maximum memory | 32 GB (2 × 16 GB) |
| Memory configuration note | For multi-module configurations, use identical modules with the same model number and follow Synology's product manual. |
| Listed optional memory | D4NS01-4G non-ECC; D4ES04-4G, D4ES03-8G and D4ES03-16G ECC modules. Check the current compatibility list and do not mix module models or memory types. |
| Storage and Expansion | |
| SATA drive bays | 8 × 3.5-inch SATA HDD or 2.5-inch SATA SSD |
| M.2 drive slots | 2 × M.2 2280 NVMe SSD |
| Maximum drive bays | 18 drives with 2 × DX525 |
| Compatible expansion unit | Synology DX525 |
| Maximum raw capacity | 192 TB internal; 432 TB with expansion, using 24 TB drives |
| Hot-swappable SATA drives | Yes; M.2 SSD slots are not hot-swappable |
| Supported drive uses |
|
| Drive compatibility | For full functionality, reliability and support, select drives and SSDs from Synology's current compatibility list. Drives are sold separately. |
| Performance | |
| Maximum sequential performance | Up to 2,239 MB/s sequential read and 1,573 MB/s sequential write in a supported high-speed network configuration |
| Performance note | Results are based on Synology test configurations. Actual performance varies with drives, RAID layout, network configuration, client hardware, workloads and system settings. |
| Networking and Ports | |
| LAN ports | 2 × RJ-45 2.5GbE |
| Network features |
|
| USB ports | 3 × USB 3.2 Gen 1 |
| Expansion ports | 2 × USB Type-C expansion ports |
| PCIe expansion | 1 × PCIe Gen3 ×8 slot, ×4 link |
| Network upgrade option | Selected Synology 10GbE or 25GbE adapters, including E10G30 and E25G30 families |
| Physical Design | |
| Form factor | Desktop tower |
| Dimensions (H × W × D) | 166 × 343 × 243 mm |
| Net weight | 6.0 kg |
| System fans | 2 × 120 mm, easy-replacement design |
| Fan modes |
|
| Noise level | 23.8 dB(A) |
| Front LED brightness control | Yes |
| Power recovery | Yes |
| Scheduled power on / off | Yes |
| Power | |
| Power supply | 250 W internal power supply |
| AC input | 100 to 240 V AC, 50/60 Hz, single phase |
| Power consumption | 60.1 W access; 18.34 W HDD hibernation |
| Thermal output | 204.94 BTU/hr access; 62.54 BTU/hr hibernation |
| Environmental | |
| Operating temperature | 0°C to 40°C |
| Storage temperature | -20°C to 60°C |
| Operating humidity | 8% to 80% RH |
| Storage humidity | 5% to 95% RH |
| DSM Storage Management | |
| Maximum internal volumes | 32 |
| Maximum single volume size | 108 TB; up to 200 TB with 32 GB memory and a supported configuration |
| Supported RAID types |
|
| RAID migration |
|
| Volume expansion with larger drives |
|
| Volume expansion by adding drives |
|
| Hot spare support |
|
| SSD functions |
|
| File Systems and Network Services | |
| Internal file systems |
|
| External file systems |
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| Supported protocols |
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| Accounts, Sharing and Logs | |
| Maximum local user accounts | 1,024 |
| Maximum local groups | 256 |
| Maximum shared folders | 256 |
| Maximum shared-folder sync tasks | 8 |
| Maximum Hybrid Share folders | 10 |
| Maximum concurrent SMB connections | 60 |
| Syslog events | 1,000 events per second |
| Backup, Availability and Virtualisation | |
| Backup applications |
|
| High availability | Synology High Availability is supported; verify network and system requirements before deployment. |
| Virtualisation platforms |
|
| Virtual Machine Manager | Up to 8 virtual machines and 8 Virtual DSM instances; 1 Virtual DSM licence included. Certain advanced features require Virtual Machine Manager Pro. |
| VPN Server | Up to 8 connections |
| DSM Application Capacity | |
| AI Console | 60 words per second; data de-identification requires at least 8 GB memory and Container Manager |
| Synology Chat Server | Up to 150 users |
| Download Station | Up to 80 concurrent download tasks |
| SAN Manager | 64 iSCSI targets; 128 LUNs |
| MailPlus Server | 5 free email accounts; up to 120 users |
| Snapshot limits | 256 snapshots per shared folder; 64 per LUN; 4,096 system snapshots |
| Snapshot Replication tasks | Up to 32 shared-folder tasks, 16 LUN tasks and 32 total replication tasks |
| Synology Drive | Up to 100 users and 1,000,000 hosted or indexed files |
| Synology Office | Up to 100 users |
| Surveillance Station | |
| Maximum IP cameras | 40; 2 device licences included. Additional device licences are sold separately. |
| H.264 recording capacity | H.264: up to 40 channels at 1,050 FPS (1080p), 40 at 600 FPS (3 MP), 40 at 440 FPS (5 MP), or 32 at 320 FPS (4K) |
| H.265 recording capacity | H.265: up to 40 channels at 1,200 FPS (1080p), 40 at 1,120 FPS (3 MP), 40 at 600 FPS (5 MP), or 40 at 480 FPS (4K) |
| Performance note | Enabling camera features such as SRTP can reduce supported performance; Synology notes approximately 70% of the listed capacity for SRTP configurations. |
| Certifications, Environment and Warranty | |
| Certifications |
|
| Environmental compliance | RoHS compliant |
| Warranty | 3 years; extendable to 5 years with optional EW201 where available. Warranty terms and availability vary by region. |
| Package Contents | |
| Included items |
|
| Not included | Hard drives, M.2 SSDs, expansion units, optional network modules or adapters, and additional software licences are sold separately. |