Synology DS925neo+ DiskStation 4-Bay 2.5GbE Tower NAS
Flexible Four-Bay Storage for Home Office and EdgeThe Synology DS925neo+ is a compact 4-bay NAS for home offices, creative teams and branch locations that need...
Flexible Four-Bay Storage for Home Office and Edge
The Synology DS925neo+ is a compact 4-bay NAS for home offices, creative teams and branch locations that need dependable file services, endpoint backup and private cloud access. It combines a 4-core AMD Ryzen processor, 4 GB non-ECC memory, dual 2.5GbE networking and two M.2 NVMe slots in an expandable desktop design.
Highlights
Scalable Storage
- Four SATA bays plus two M.2 NVMe slots
- Expand to nine drives with one optional DX525
- Up to 216 TB raw capacity after expansion
Fast Built-In Networking
- Two 2.5GbE LAN ports
- Up to 522 MB/s sequential read and 565 MB/s write
- Link aggregation and network failover support
Business-Ready Data Services
- Centralised file sharing and private cloud access
- Multi-device and SaaS backup workflows
- 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
- Same core platform as DS925+ with a lower-cost memory configuration
Key Features
Four-Bay Storage That Grows
Start with up to four 3.5-inch or 2.5-inch SATA drives, then add an optional DX525 expansion unit when capacity requirements increase. The platform supports up to nine total drives and up to 216 TB of raw storage using 24 TB drives.
Dual 2.5GbE Connectivity
Two built-in 2.5GbE ports provide faster-than-Gigabit file transfers and can be configured for link aggregation or failover. Performance can reach up to 522 MB/s sequential read and 565 MB/s sequential write in Synology test configurations.
M.2 NVMe Acceleration and Storage
Two M.2 2280 NVMe slots can be used with compatible SSDs for cache or supported SSD storage pool configurations. SSDs are sold separately, and model-specific compatibility should be checked before purchase.
Private Cloud and File Collaboration
Synology Drive, Synology Office and Hybrid Share help teams sync, share and collaborate on files across devices and sites while keeping control of business data on the NAS.
Integrated Backup Platform
Active Backup Suite, Hyper Backup and Snapshot Replication support centralised protection for computers, servers, virtual machines, Microsoft 365, Google Workspace and NAS data. Some 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 camera and Virtual DSM licences are sold separately.
Neo+ Memory Choice
DS925neo+ ships with 4 GB DDR4 non-ECC SODIMM memory and supports up to 32 GB using compatible modules. The standard DS925+ uses 4 GB ECC memory, so buyers who require ECC protection should choose the standard model.
Compatibility and Support
For full functionality, reliability and support, verify hard drives, SSDs, memory and expansion products against Synology's current compatibility list. Drives, SSDs and expansion units are not included.
Summary
DS925neo+ is a strong fit for growing home offices and small teams that want four-bay storage, dual 2.5GbE, NVMe flexibility and Synology DSM services at an accessible entry point. It offers a clear upgrade path through memory expansion and the DX525 while retaining a compact desktop footprint.
Synology DS925neo+ DiskStation 4-Bay 2.5GbE Tower NAS
The Synology DS925neo+ is a flexible 4-bay desktop NAS for file services, private cloud, endpoint backup and surveillance. It combines a 4-core AMD Ryzen V1500B processor, 4 GB DDR4 non-ECC memory, dual 2.5GbE networking and two M.2 NVMe slots. One optional DX525 expands the system to nine drives and up to 216 TB of raw capacity. The neo+ configuration provides the same core platform as DS925+ with non-ECC memory for a more accessible starting cost.
| 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 | 4 × 3.5-inch SATA HDD or 2.5-inch SATA SSD |
| M.2 drive slots | 2 × M.2 2280 NVMe SSD |
| Maximum drive bays | 9 drives with 1 × DX525 |
| Compatible expansion unit | Synology DX525 |
| Maximum raw capacity | 96 TB internal; 216 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 522 MB/s sequential read and 565 MB/s sequential write |
| 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 | 2 × USB 3.2 Gen 1 |
| Expansion ports | 1 × USB Type-C expansion port |
| PCIe expansion | None |
| Network upgrade option | Built-in dual 2.5GbE; no PCIe network upgrade slot |
| Physical Design | |
| Form factor | Desktop tower |
| Dimensions (H × W × D) | 166 × 199 × 223 mm |
| Net weight | 2.26 kg |
| System fans | 2 × 92 mm |
| Fan modes |
|
| Noise level | 20.5 dB(A) |
| Front LED brightness control | Yes |
| Power recovery | Yes |
| Scheduled power on / off | Yes |
| Power | |
| Power supply | 100 W or 120 W external adapter, depending on region |
| AC input | 100 to 240 V AC, 50/60 Hz, single phase |
| Power consumption | 37.91 W access; 12.33 W HDD hibernation |
| Thermal output | 129.27 BTU/hr access; 42.05 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 |
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| File Systems and Network Services | |
| Internal file systems |
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| External file systems |
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| Supported protocols |
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| Accounts, Sharing and Logs | |
| Maximum local user accounts | 512 |
| Maximum local groups | 128 |
| Maximum shared folders | 128 |
| Maximum shared-folder sync tasks | 4 |
| Maximum Hybrid Share folders | 10 |
| Maximum concurrent SMB connections | 40 |
| Syslog events | 800 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 | 40 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 | 32 iSCSI targets; 64 LUNs |
| MailPlus Server | 5 free email accounts; up to 90 users |
| Snapshot limits | 256 snapshots per shared folder; 32 per LUN; 2,048 system snapshots |
| Snapshot Replication tasks | Up to 32 shared-folder tasks, 16 LUN tasks and 32 total replication tasks |
| Synology Drive | Up to 80 users and 500,000 hosted or indexed files |
| Synology Office | Up to 80 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), 30 at 360 FPS (5 MP), or 20 at 200 FPS (4K) |
| H.265 recording capacity | H.265: up to 40 channels at 1,200 FPS (1080p), 40 at 1,000 FPS (3 MP), 40 at 600 FPS (5 MP), or 30 at 300 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. |