8-Bay Expandable High-Capacity Desktop NAS
Synology DS1825neo+ Network Attached Storage
A high-capacity desktop NAS designed for scalability and performance, with eight SATA drive bays, dual 2.5GbE networking, two M.2 NVMe cache slots, PCIe expansion for up to 25GbE networking, and expansion to 18 drive bays with two DX525 units.
Scalable storage for demanding data workflows
The Synology DS1825neo+ is an eight-bay desktop NAS built for organisations and advanced users that need substantial storage capacity, fast file access and room to grow. It combines dual built-in 2.5GbE networking, two M.2 NVMe slots for cache, PCIe expansion for optional 10GbE or 25GbE networking, and support for two DX525 expansion units. Synology applications add private-cloud file access, backup, multi-site synchronisation, surveillance, collaboration and virtualised test environments.
Key features and benefits
Eight-bay storage with expansion
Consolidate up to 192 TB of raw storage across eight bays, then add two DX525 expansion units for up to 18 bays and 432 TB of total raw capacity when using 24 TB drives.
Dual built-in 2.5GbE
Two 2.5GbE RJ-45 ports provide fast out-of-the-box connectivity for shared storage, backup and multi-user access.
Up to 25GbE networking
A PCIe Gen3 x8 slot with x4 link supports compatible add-in network cards, including the supplied 10GbE and 25GbE options.
Two M.2 NVMe cache slots
Two M.2 2280 NVMe SSD slots support compatible SSD cache configurations to improve storage responsiveness.
High sequential performance
The supplied performance figures state up to 2,239 MB/s sequential read and 1,573 MB/s sequential write.
Private cloud and collaboration
Store, sync, access and share files across devices while using Synology productivity tools for real-time document collaboration and communication.
Protection, synchronisation and application workflows
Centralised backup and recovery
Consolidate backups for PCs, file servers, virtual machines, SaaS applications and Synology systems, with scheduled backup and recovery options.
Immutable snapshots
Protect critical LUNs and shared folders with automated immutable snapshots backed by custom retention policies and offsite replication support.
Multi-site synchronisation
Use automatic one-way or two-way NAS-to-NAS synchronisation to keep files aligned across different sites and teams.
Public cloud synchronisation
Keep Synology NAS data in sync with Backblaze B2, Dropbox, Google Drive and Microsoft OneDrive using configurable controls.
Smart surveillance
Synology Surveillance Station provides centralised live monitoring, investigation, playback and backup, with the DS1825neo+ positioned to manage up to 40 IP cameras.
Containers and virtual machines
Create application testing and evaluation environments using Docker containers and virtual machines, with Virtual DSM providing an isolated test environment.
Who is the Synology DS1825neo+ best for?
A strong choice for
- Businesses and advanced users needing eight internal drive bays
- Large shared file, photo, video and project-data libraries
- Multi-site file synchronisation and collaboration
- Centralised backup for PCs, servers, VMs and SaaS applications
- Deployments planning optional 10GbE or 25GbE networking
- Surveillance deployments requiring management of up to 40 IP cameras
Consider another model if you need
- More than 18 total drive bays through the supplied DX525 expansion path
- 25GbE networking without installing a compatible add-in card
- A rackmount chassis rather than a desktop NAS
- M.2 NVMe storage pools rather than the supplied cache use case
Key specifications
- Processor
- AMD Ryzen V1500B, 4 cores / 8 threads, 2.2 GHz
- System memory
- 4 GB DDR4 non-ECC SODIMM
- Maximum memory
- 32 GB (16 GB × 2)
- Internal storage
- 8 × 3.5-inch SATA HDD or 2.5-inch SATA SSD bays; 2 × M.2 2280 NVMe SSD slots for cache
- Expansion
- Up to 18 drive bays with 2 × DX525 expansion units
- Networking
- 2 × RJ-45 2.5GbE LAN ports; optional 10GbE or 25GbE via PCIe network interface card
- PCIe
- 1 × Gen3 x8 slot (x4 link)
- USB
- 3 × USB 3.2 Gen 1 ports
- Dimensions
- 166 × 343 × 243 mm (H × W × D)
- Weight
- 6 kg
- Warranty
- 3-year hardware warranty, extendable to 5 years with EW201
Full technical specifications
Processor, memory and storage
| CPU Model | AMD Ryzen V1500B |
|---|---|
| CPU Quantity | 1 |
| CPU Cores | 4 |
| CPU Threads | 8 |
| CPU Architecture | 64-bit |
| CPU Frequency | 2.2 GHz |
| Hardware Encryption Engine | Not specified |
| System Memory | 4 GB DDR4 non-ECC SODIMM |
| Memory Module Pre-installed | 4 GB (4 GB × 1) |
| Total Memory Slots | 2 |
| Maximum Memory Capacity | 32 GB (16 GB × 2) |
| Drive Bays | 8 × 3.5-inch SATA HDD or 2.5-inch SATA SSD 2 × M.2 2280 NVMe SSD |
| Maximum Drive Bays with Expansion Unit | 18 (DX525 × 2) |
| Hot Swappable Drive | Not specified |
| M.2 Hot Swap Note | The hot swappable drive feature is not supported by M.2 SSD slots. |
| M.2 NVMe Usage | Cache |
| SSD Cache Note | SSD cache can be enabled with select compatible SSDs. SSDs are sold separately. |
Network, ports and expansion
| RJ-45 2.5GbE LAN Port | 2 |
|---|---|
| USB 3.2 Gen 1 Port | 3 |
| Expansion Port | 2 |
| Expansion Port Type | USB Type-C |
| PCIe Expansion | 1 × Gen3 x8 slot (x4 link) |
| Optional 25GbE Network Interface Card | E25G30-F2 |
| Optional 10GbE Network Interface Cards | E10G30-F2 / E10G30-T2 / E10G30-T1 |
| Maximum Listed Networking | Up to 25GbE with compatible add-in card |
Physical, environmental and power
| Size (Height × Width × Depth) | 166 mm × 343 mm × 243 mm |
|---|---|
| Weight | 6 kg |
| System Fan | 120 mm × 120 mm × 2 pcs |
| Fan Speed Modes | Full-Speed Mode Cool Mode Quiet Mode |
| Easy Replacement System Fan | Not specified |
| Brightness Adjustable Front LED Indicators | Not specified |
| Power Recovery | Not specified |
| Noise Level | 23.8 dB(A) |
| Scheduled Power On / Off | Not specified |
| Wake on LAN / WAN | Not specified |
| Power Supply Unit / Adapter | 250 watts |
| AC Input Power Voltage | 100V to 240V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power Consumption | 60.1 watts (Access) 18.34 watts (HDD Hibernation) |
| British Thermal Unit | 204.94 BTU/hr (Access) 62.54 BTU/hr (HDD Hibernation) |
| 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 |
Performance, applications and management
| Sequential Read Performance | Up to 2,239 MB/s |
|---|---|
| Sequential Write Performance | Up to 1,573 MB/s |
| Raw Storage Capacity | Up to 192 TB across 8 bays when using 24 TB drives |
| Raw Storage Capacity with Expansion | Up to 432 TB across 18 bays when using 24 TB drives and two DX525 expansion units |
| IP Camera Management | Up to 40 IP cameras |
| Surveillance Station Camera Compatibility | Support for over 8,700 IP camera models |
| Containers and Virtual Machines | Supports Docker containers and virtual machines for application testing and evaluation. |
| Virtual DSM | Can act as a dedicated test environment with isolation between applications, systems and data. |
| Public Cloud Sync Services Listed | Backblaze B2, Dropbox, Google Drive and Microsoft OneDrive |
| Centralised Management | Central Management System and Active Insight |
Certification, warranty and package contents
| Certifications | FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS |
|---|---|
| Environment | RoHS Compliant |
| Warranty | 3-year hardware warranty, extendable to 5 years with EW201 |
| Package Contents | Main Unit × 1 Accessory Pack × 1 AC Power Cord × 1 RJ-45 LAN Cable × 2 |
Optional accessories and compatibility notes
| Memory | DDR4 non-ECC SODIMM: D4NS01-4G DDR4 ECC SODIMM: D4ES04-4G / D4ES03-8G / D4ES03-16G |
|---|---|
| Expansion Units | DX525 |
| Enterprise Series 3.5-inch SATA HDD | HAT5300 Series |
| Plus Series 3.5-inch SATA HDD | HAT3300 Series |
| Enterprise Series 2.5-inch SATA SSD | SAT5200 Series |
| Enterprise Series M.2 2280 NVMe SSD | SNV3400 & SNV5400 Series |
| 25GbE Network Interface Card | E25G30-F2 |
| 10GbE Network Interface Cards | E10G30-F2 / E10G30-T2 / E10G30-T1 |
| Drive Compatibility Note | Synology only guarantees full functionality, reliability and performance for compatible drives. Consult the Synology compatibility list before purchasing hard drives. |
| Memory Configuration Note | For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual for recommended memory configurations. |
Frequently asked questions about the DS1825neo+
What is the Synology DS1825neo+?
The Synology DS1825neo+ is an eight-bay expandable desktop NAS designed for high-capacity storage, backup, file sharing, synchronisation, surveillance and application testing.
Which processor does the DS1825neo+ use?
The DS1825neo+ uses an AMD Ryzen V1500B processor with four cores, eight threads and a stated 2.2 GHz frequency.
How much memory is included with the DS1825neo+?
The DS1825neo+ includes 4 GB DDR4 non-ECC SODIMM memory. The supplied specification lists two memory slots and a maximum capacity of 32 GB using 16 GB × 2.
How many drive bays does the DS1825neo+ have?
The DS1825neo+ has eight internal SATA drive bays and two M.2 2280 NVMe SSD slots. Adding two DX525 expansion units increases the maximum drive-bay count to 18.
How much raw storage can the DS1825neo+ provide?
The supplied information states up to 192 TB of raw storage across the eight internal bays when using 24 TB drives, or up to 432 TB across 18 bays after adding two DX525 units.
What network ports are built into the DS1825neo+?
The DS1825neo+ includes two built-in RJ-45 2.5GbE LAN ports.
Can the DS1825neo+ be upgraded to 25GbE networking?
Yes. The supplied information states that the DS1825neo+ supports networking up to 25GbE through a compatible PCIe add-in card, with E25G30-F2 listed as an optional 25GbE network interface card.
What are the M.2 NVMe slots used for on the DS1825neo+?
The two M.2 2280 NVMe slots are listed for SSD caching on the DS1825neo+.
Can the DS1825neo+ run containers and virtual machines?
Yes. The supplied content states that the DS1825neo+ can support Docker containers and virtual machines for application testing and evaluation, with Virtual DSM available as an isolated test environment.
How many IP cameras can the DS1825neo+ manage?
The supplied product information states that the DS1825neo+ can manage up to 40 IP cameras.
What are the dimensions and weight of the DS1825neo+?
The DS1825neo+ measures 166 × 343 × 243 mm (H × W × D) and weighs 6 kg.
What warranty is supplied with the DS1825neo+?
The DS1825neo+ has a three-year hardware warranty, with the supplied specification stating that it can be extended to five years with EW201.
Important information
SSDs are sold separately. Check compatible drive, SSD, memory and network-card requirements before purchase.
Synology only guarantees full functionality, reliability and performance for compatible drives.
The stated performance figures are based on Synology internal testing. Actual performance may be lower due to differences in server configuration, deployment and the number of active operations.
Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state.
For multi-module memory configurations, all modules must be identical and share the same model number.
