What network ports are built into the Synology DS1825neo+?

The DS1825neo+ includes two built-in 2.5GbE RJ-45 LAN ports.

8-Bay Desktop NAS

Synology DiskStation DS1825neo+

The Synology DiskStation DS1825neo+ is a versatile 8-bay storage solution designed for scalable data storage, protection, sharing, synchronization, backup and surveillance. It combines built-in 2.5GbE networking, SATA HDD and SSD support, M.2 NVMe caching, PCIe network expansion and support for two DX525 expansion units.

What is the Synology DS1825neo+?

The DS1825neo+ is an 8-bay desktop NAS powered by an AMD Ryzen V1500B 4-core/8-thread processor and 4 GB of DDR4 memory. It includes two 2.5GbE LAN ports, two M.2 2280 NVMe slots and a PCIe Gen3 expansion slot, with storage expansion to 18 drive bays using two DX525 expansion units.

8 Bays Supports 3.5-inch SATA HDDs or 2.5-inch SATA SSDs

2 × 2.5GbE Built-in high-speed network connectivity

2 × M.2 NVMe M.2 2280 NVMe slots supporting SSD caching

432 TB Up to 18 bays and 432 TB raw storage with two DX525 units

High-Capacity Storage with Flexible Expansion

Start with eight drive bays and expand storage as requirements grow.

The DS1825neo+ supports eight 3.5-inch SATA HDDs or 2.5-inch SATA SSDs, providing up to 192 TB of raw storage when using 24 TB drives.

Two DX525 expansion units can increase the system to a total of 18 drive bays and up to 432 TB of raw storage. The DX525 expansion units are sold separately.

Fast and Flexible Networking

Built-in multi-gigabit networking with options for faster network connectivity.

Dual 2.5GbE Ports

Two integrated 2.5GbE RJ-45 ports provide built-in multi-gigabit networking. Link Aggregation supports failover and load-balancing capabilities.

10GbE and 25GbE Expansion

The PCIe expansion slot supports compatible network adapters for 10GbE SFP+/RJ-45 and 25GbE SFP28 connectivity.

Sequential Performance

Synology's supplied datasheet lists sequential throughput of up to 2,235 MB/s read and 1,574 MB/s write under its test conditions.

SSD Caching and Expandable Memory

Additional flexibility for storage performance and DSM workloads.

Two built-in M.2 2280 NVMe slots provide SSD caching without occupying the eight main drive bays. Compatible M.2 NVMe SSDs can also be used to create storage pools where supported.

The DS1825neo+ is supplied with 4 GB DDR4 non-ECC SODIMM memory and has two memory slots. Maximum supported memory capacity is 32 GB using two 16 GB modules.

Private Cloud File Management and Collaboration

Centralise files while supporting access, sharing and teamwork across devices and locations.

Synology Drive

Centralises files for access and synchronization across Windows, macOS, Linux, Android and iOS, with sharing permissions and file management features.

Synology Photos

Store, organise and share photos and videos using Synology's photo management tools.

Synology Office and Chat

Synology Office supports real-time collaboration on documents, spreadsheets and presentations, while Synology Chat supports team communication.

Multi-Site File Synchronization

Keep distributed teams and storage locations aligned.

NAS-to-NAS Synchronization

Automatic one-way or two-way synchronization helps keep files and folders updated between Synology systems at different sites.

Hybrid Share

Hybrid Share combines Synology C2 cloud storage with local caching to support fast access to frequently used files across multiple locations.

Cloud and Remote Access

Synology DSM provides browser, desktop client and mobile access to stored data, with QuickConnect available for browser-based system access.

Backup, Protection and Recovery

Consolidate protection for endpoints, servers, virtual machines and Synology systems.

Active Backup Suite

Consolidates protection for Windows clients and servers, Linux endpoints, Synology systems, VMware and Hyper-V virtual machines, and SaaS applications.

Hyper Backup

Supports backup of Synology system data to local storage, remote servers and public cloud destinations, including Synology C2 Storage.

Snapshot Replication

Provides scheduled snapshot protection with version control for shared folders and LUNs.

Private Video Surveillance

Use Synology Surveillance Station to manage and protect surveillance recordings.

Surveillance Station supports more than 8,700 camera models together with ONVIF-compatible cameras, browser, desktop and mobile access, event-based rules and notification options.

The DS1825neo+ supports up to 40 IP cameras depending on codec and resolution. Two Surveillance Station camera licences are included; additional cameras require additional licences.

Virtualization and Application Testing

Run containers and virtual machines or use the NAS as storage for virtualized environments.

The DS1825neo+ supports VMware vSphere, Microsoft Hyper-V, Citrix XenServer and OpenStack environments. Container Manager supports lightweight containers, while Synology Virtual Machine Manager supports Windows, Linux and virtual DSM instances.

Synology recommends up to eight virtual machine instances and up to eight Virtual DSM instances, including one free Virtual DSM licence.

Centralized Synology Management

Monitor and administer Synology systems from centralized interfaces.

Central Management System

Provides a single interface to manage and monitor multiple Synology NAS systems.

Active Insight

Synology's cloud-based monitoring solution provides fleet monitoring capabilities including performance, backup status and login activity.

Synology High Availability

Two identical compatible Synology NAS units can be combined into a high-availability cluster to reduce service downtime.

Frequently Asked Questions

Key information about the Synology DiskStation DS1825neo+.

How many drive bays does the DS1825neo+ have?

It has eight main drive bays supporting 3.5-inch SATA HDDs or 2.5-inch SATA SSDs.

Can the DS1825neo+ storage capacity be expanded?

Yes. Two DX525 expansion units can increase the system to 18 drive bays and up to 432 TB of raw storage when using 24 TB drives. Expansion units are sold separately.

What network ports are built into the DS1825neo+?

It includes two built-in 2.5GbE RJ-45 LAN ports.

Can the DS1825neo+ be upgraded to 10GbE or 25GbE?

Yes. The supplied datasheet states that compatible PCIe network adapter cards can provide 10GbE SFP+/RJ-45 or 25GbE SFP28 connectivity.

Does the DS1825neo+ support NVMe SSD caching?

Yes. It has two M.2 2280 NVMe SSD slots that support SSD caching.

How much memory does the DS1825neo+ include?

It includes 4 GB DDR4 non-ECC SODIMM memory and supports up to 32 GB using two 16 GB modules.

How many IP cameras can the DS1825neo+ manage?

Surveillance Station supports up to 40 IP cameras depending on codec and resolution. Two camera licences are included by default.

What is the standard hardware warranty?

The supplied specifications list a 3-year hardware warranty, extendable to 5 years with eligible warranty options where available.

Raw storage capacity figures are calculated using 24 TB drives. Usable storage capacity varies according to the drives used and RAID configuration.

Compatible drives are required. SSDs, expansion units, PCIe network adapters and other optional accessories are sold separately unless otherwise specified.

(DS1825NEOPLUS)

Synology DiskStation DS1825neo+ Specifications

Hardware, storage, networking, DSM, application, environmental and physical specifications.

Specification	Details
Processor
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	Yes
Memory
System Memory	4 GB DDR4 non-ECC SODIMM
Pre-installed Memory	4 GB (4 GB × 1)
Total Memory Slots	2
Maximum Memory Capacity	32 GB (16 GB × 2)
Storage
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	18 (DX525 × 2)
Hot-Swappable Drives	Yes Hot swapping is not supported by the M.2 SSD slots.
Maximum Raw Storage	Up to 192 TB across 8 bays; up to 432 TB with two DX525 expansion units Raw capacity figures are calculated using 24 TB drives.
M.2 SSD Cache	Supported with select compatible SSDs
M.2 SSD Storage Pool	Supported with Synology-verified SSDs
Networking and External Ports
2.5GbE LAN	2 × RJ-45 2.5GbE ports
USB	3 × USB 3.2 Gen 1
Expansion Ports	2 × USB Type-C expansion ports
Network Expansion	Supports compatible 10GbE SFP+/RJ-45 and 25GbE SFP28 adapter cards
PCIe Expansion	1 × PCIe Gen3 x8 slot (x4 link)
Performance
Sequential Read	Up to 2,235 MB/s Datasheet test figure. Actual performance varies by environment, usage and configuration.
Sequential Write	Up to 1,574 MB/s Datasheet test figure. Actual performance varies by environment, usage and configuration.
Physical Specifications
Form Factor	Desktop
Dimensions	166 × 343 × 243 mm (H × W × D)
Weight	6 kg
System Fans	2 × 120 × 120 mm
Fan Modes	Full-Speed Mode, Cool Mode, Quiet Mode
Noise Level	23.8 dB(A)
Adjustable Front LED Brightness	Yes
Scheduled Power On / Off	Yes
Wake on LAN / WAN	Yes
Power
Power Supply	250 W
AC Input	100 V to 240 V AC
Power Frequency	50/60 Hz, single phase
Power Consumption - Access	60.1 W
Power Consumption - HDD Hibernation	18.34 W
Thermal Output - Access	204.94 BTU/hr
Thermal Output - HDD Hibernation	62.54 BTU/hr
Operating Environment
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
Maximum Operating Altitude	5,000 m
Certification and Environment
Certifications	FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS
Environmental Compliance	RoHS compliant
DSM Storage Management
Maximum Single Volume Size	200 TB with 32 GB memory 108 TB Volumes over 108 TB require 32 GB of memory or more.
Maximum Internal Volumes	32
SSD Read/Write Cache	Yes
SSD TRIM	Yes
Storage Efficiency	Supported
Supported RAID Types	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 HDD	Synology Hybrid RAID, JBOD, RAID 5, RAID 6
Global Hot Spare RAID Support	Synology Hybrid RAID, RAID 1, RAID 5, RAID 6, RAID 10
File Systems and Services
Internal File Systems	Btrfs, ext4
External File Systems	Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT
File Protocols	SMB, AFP, NFS, FTP, WebDAV, Rsync
Maximum SMB Connections	60 (FSCT-based)
Windows ACL Integration	Yes
NFS Kerberos Authentication	Yes
Accounts and Shared Folders
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
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
Citrix XenServer	XenServer 8.4, XenServer 8, Citrix Hypervisor 8.2 LTSR CU1
OpenStack	Cinder
Recommended Virtual Machines	8
Recommended Virtual DSM Instances	8, including 1 free licence
Applications and Services
Synology Drive - Maximum Users	100
Synology Drive - Maximum Hosted Files	1,000,000
Synology Office - Maximum Users	100
Synology Chat - Maximum Users	150
Synology MailPlus - Free Accounts	5; additional accounts require licences
Synology MailPlus - Maximum Users	120
SAN Manager - Maximum iSCSI Targets	64
SAN Manager - Maximum LUNs	128
Download Station - Concurrent Tasks	80
VPN Server - Maximum Connections	8
Snapshot Replication
Maximum Snapshots per Shared Folder	256
Maximum Snapshots per LUN	64
Maximum Snapshots per System	4,096
Maximum Shared Folder Replication Tasks	32
Maximum LUN Replication Tasks	16
Maximum Replication Tasks per System	32
Surveillance Station
Default Camera Licences	2; additional cameras require licences
Maximum H.264 Camera Performance	1080p: 40 channels / 1050 FPS 3M: 40 channels / 600 FPS 5M: 40 channels / 440 FPS 4K: 32 channels / 320 FPS
Maximum H.265 Camera Performance	1080p: 40 channels / 1200 FPS 3M: 40 channels / 1120 FPS 5M: 40 channels / 600 FPS 4K: 40 channels / 480 FPS
Packaging
Package Contents	Main Unit × 1 Accessory Pack × 1 AC Power Cord × 1 RJ-45 LAN Cable × 2
Optional Accessories
Memory	D4NS01-4G D4ES04-4G D4ES03-8G D4ES03-16G
Expansion Unit	DX525
3.5-inch SATA HDD	HAT5300 Series, HAT3300 Series
2.5-inch SATA SSD	SAT5200 Series
M.2 2280 NVMe SSD	SNV3400 and SNV5400 Series
25GbE Network Interface Card	E25G30-F2
10GbE Network Interface Cards	E10G30-F2, E10G30-T2
Warranty
Hardware Warranty	3 years, extendable to 5 years with EW201 or Extended Warranty Plus Availability of warranty extensions varies by region. Warranty period starts from the purchase date stated on the purchase receipt.