Overview

Synology DS725neo+ 2-Bay NAS
The Synology DS725neo+ is a compact 2-bay NAS designed for reliable file storage, backups, private cloud access, surveillance, and data sharing at home or in small business environments. With an AMD Ryzen R1600 dual-core processor, 4GB of DDR4 memory, built-in 2.5GbE networking, and support for both SATA drives and M.2 NVMe SSD caching, it provides a flexible storage platform that can grow as your needs change.

The two internal drive bays support 3.5-inch SATA hard drives or 2.5-inch SATA SSDs, while two M.2 2280 NVMe slots can be used for cache acceleration. Storage capacity can also be expanded with a compatible expansion unit, allowing the system to scale to up to 168 TB of raw capacity when configured with supported 24 TB drives.

Description

The DS725neo+ combines fast network connectivity, flexible storage options, and a broad range of Synology applications in a compact NAS enclosure. It can be used to centralize documents, photos, videos, business files and backups while providing secure access across computers, mobile devices and other platforms.

Its 2.5GbE connectivity enables faster file transfers than standard Gigabit networking, while the M.2 NVMe slots provide additional options for improving storage performance through caching. With support for hot-swappable drives and expansion storage, the DS725neo+ is suited to users who want a NAS that can adapt as storage requirements increase.

Synology applications also make the system useful beyond basic file storage. You can synchronize files between locations, protect computers and other devices with automated backups, manage photos, support collaborative workflows and deploy professional video surveillance.

Features

Fast 2.5GbE Network Storage
The DS725neo+ includes 2.5GbE networking for high-speed access to stored data. It can achieve sequential read speeds of up to 276 MB/s and sequential write speeds of up to 224 MB/s, depending on the configuration and workload.

Key connectivity and storage options include:

• 1 x RJ-45 2.5GbE LAN port
• 1 x RJ-45 1GbE LAN port
• 1 x USB 3.2 Gen 1 port
• 1 x USB Type-C expansion port
• 2 x M.2 2280 NVMe SSD slots for caching
• 2 x internal SATA drive bays
• Hot-swappable drive support

For users with a compatible 2.5GbE network, the faster Ethernet connection can significantly improve large file transfers, backups and general NAS access compared with a traditional 1GbE connection.

Flexible Storage for Home and Business
The two drive bays can accommodate 3.5-inch SATA hard drives or 2.5-inch SATA SSDs, giving users flexibility when selecting their preferred storage technology. HDDs can provide economical high-capacity storage, while SSDs can be used where faster and quieter storage is preferred.

The two M.2 2280 NVMe slots add another layer of flexibility by supporting NVMe SSDs for cache use. This can help improve access to frequently used data without requiring the primary storage pool to be entirely SSD-based.

The DS725neo+ provides up to 48 TB of raw internal capacity across two bays when using 24 TB drives. For growing storage requirements, a compatible expansion unit can increase the total raw capacity to as much as 168 TB.

Private Cloud and File Management
Use the DS725neo+ as your own private cloud for storing, accessing and sharing files across computers, smartphones and other devices. Files can be accessed through desktop applications, mobile apps and a browser-based interface, making it easier to work with data from different locations.

File versioning also helps recover previous versions after accidental deletion, mistakes or other unwanted changes. This provides an additional layer of protection for important documents and shared files.

Photo and Media Management
The NAS can be used to centralize photos, videos and other visual content. Files can be organized into albums and shared securely with colleagues, clients, friends or family members.

Keeping your media on a centralized NAS also makes it easier to manage content across multiple devices without relying solely on local computer or smartphone storage.

Backup and Data Protection
The DS725neo+ provides a central location for automating backups across PCs, file servers, virtual machines, SaaS applications and other devices. Administrators can manage backup tasks centrally and restore individual files or complete systems when required.

Synology backup tools can also support scheduled backups to local and remote servers, external storage and cloud destinations. This makes it possible to build a structured 3-2-1 backup strategy for improved protection against hardware failure, accidental deletion and other data-loss events.

Immutable snapshots provide additional protection for critical shared folders and LUNs. Retention policies and offsite replication can be used to strengthen business continuity and recovery planning.

Multi-Site File Synchronization
For businesses working across branches or multiple locations, the DS725neo+ can synchronize files and folders between NAS systems. Automatic one-way or two-way synchronization helps keep important data available and up to date across different sites.

Cloud-based synchronization can also provide access to frequently used data while reducing the amount of storage required locally. The system supports synchronization with major cloud platforms including Backblaze B2, Dropbox, Google Drive and Microsoft OneDrive.

Surveillance Storage and Monitoring
The DS725neo+ can also be used as part of a Synology surveillance solution. Surveillance Station provides centralized management, remote monitoring, video playback and support for a large range of IP camera models.

The system can support up to 40 IP cameras under the stated configuration, making it suitable for a range of small business and property surveillance deployments. Cloud-based recording backup can provide another layer of protection for important footage, including encrypted storage and remote access.

Centralized NAS Management
Businesses managing multiple Synology systems can use centralized management tools to monitor and administer their NAS fleet. Central Management System supports functions such as group policies, delegated tasks and batch updates.

Active Insight provides cloud-based monitoring of NAS performance, backup status, login activity and other system information, helping administrators keep track of systems across different locations.

Processor and Memory
The DS725neo+ is powered by an AMD Ryzen R1600 dual-core processor and comes with 4GB of DDR4 non-ECC SO-DIMM memory. The system has two memory slots, providing additional flexibility for compatible memory configurations.

Its hardware platform is designed to handle common NAS workloads such as file sharing, backups, synchronization, private cloud access and surveillance management.

Technical Details

• Model: Synology DS725neo+
• Part Number / SKU: DS725neo+
• Processor: AMD Ryzen R1600 dual-core
• Installed memory: 4GB DDR4 non-ECC SO-DIMM
• Memory slots: 2
• Internal drive bays: 2
• Drive support: 3.5-inch SATA HDD or 2.5-inch SATA SSD
• M.2 slots: 2 x M.2 2280 NVMe
• M.2 usage: SSD caching
• Maximum expansion: Up to 7 total drive bays with compatible expansion
• Maximum raw capacity with expansion: Up to 168 TB
• Network: 1 x 2.5GbE RJ-45 and 1 x 1GbE RJ-45
• USB: 1 x USB 3.2 Gen 1
• Expansion: 1 x USB Type-C expansion port
• Drive installation: Hot-swappable

A Scalable NAS for Everyday Storage
The Synology DS725neo+ is a practical choice for users who need more than basic network storage. Its combination of 2.5GbE connectivity, two SATA drive bays, NVMe caching, expandable storage and Synology's software ecosystem makes it suitable for centralized file storage, automated backups, private cloud services, collaboration and surveillance.

Whether it is being used as a home NAS, small business file server or expandable storage platform, the DS725neo+ provides a compact starting point with room to grow as storage and networking requirements increase.

Specifications

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Specifications
Product Code	DS725neo+
CPU
CPU Model	AMD Ryzen R1600
CPU Quantity	1
CPU Cores	2
CPU Threads	4
CPU Architecture	64-bit
CPU Frequency	2.6 (base) / 3.1 (turbo) GHz
Hardware Encryption Engine	Yes
Memory
System Memory	4 GB DDR4 non-ECC SODIMM
Memory Module Pre-installed	4 GB (4 GB x 1)
Total Memory Slots	2
Maximum Memory Capacity	32 GB (16 GB x 2)
Notes	Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance.
Storage
Drive Bays (See all supported drives)	2 x 3.5" SATA HDD or 2.5" SATA SSD
	2 x M.2 2280 NVMe SSD
Maximum Drive Bays with Expansion Unit	7 (DX525 x 1)
Hot Swappable Drive	Yes
Notes	The hot swappable drive feature is not supported by M.2 SSD slots.
External Ports
RJ-45 1GbE LAN Port	1
RJ-45 2.5GbE LAN Port	1
USB 3.2 Gen 1 Port	1
Expansion Port	1
Expansion Port Type	USB Type-C
Notes	This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
Appearance
Size (Height x Width x Depth)	166 mm x 106 mm x 223 mm
Weight	1.51 kg
Others
System Fan	92 mm x 92 mm x 1 pcs
Fan Speed Mode	Full-Speed Mode
	Cool Mode
	Quiet Mode
Brightness Adjustable Front LED Indicators	Yes
Power Recovery	Yes
Noise Level	17.9 dB(A)
Scheduled Power On / Off	Yes
Wake on LAN / WAN	Yes
Power Supply Unit / Adapter	65 watts
AC Input Power Voltage	100V to 240V AC
Power Frequency	50/60 Hz, Single Phase
Power Consumption	20.41 watts (Access)
	7.87 watts (HDD Hibernation)
British Thermal Unit	69.61 BTU/hr (Access)
	26.84 BTU/hr (HDD Hibernation)
Notes	For more information on how power consumption is measured, refer to this article.
	Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A) , Temperature: 24.25-25.75degreesC , Humidity: 58.2-61.8%
Temperature
Operating Temperature	0degreesC to 40degreesC (32degreesF to 104degreesF)
Storage Temperature	-20degreesC to 60degreesC (-5degreesF to 140degreesF)
Operating Humidity	8% to 80% RH
Storage Humidity	5% to 95% RH
Certification
Certification	FCC
	CE
	BSMI
	VCCI
	RCM
	UKCA
	EAC
	CCC
	KC
	BIS
Environment
Environment	RoHS Compliant
Packaging Content
Packaging Content	Main Unit x 1
	Accessory Pack x 1
	AC Power Adapter x 1
	AC Power Cord x 1
	RJ-45 LAN Cable x 2
Optional Accessories
Optional Accessories	DDR4 non-ECC SODIMM: D4NS01-4G
	DDR4 ECC SODIMM: D4ES04-4G/D4ES03-8G/D4ES03-16G
	Expansion Units: DX525
	Enterprise Series 3.5" SATA HDD: HAT5300 Series
	Plus Series 3.5" SATA HDD: HAT3300 Series
	Enterprise Series 2.5" SATA SSD: SAT5200 Series
	Enterprise Series M.2 2280 NVMe SSD: SNV3400 & SNV5400 Series
Notes	For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.