Synology DS725+ + Seagate IronWolf 4TB

Name: Synology DS725+ + Seagate IronWolf 4TB
Brand: Synology
SKU: 973096
Price: 764 EUR
Availability: InStock
Rating: 9.9 (3 reviews)

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with 4TB HDD (1x 4 TB)

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Reviews
Specifications

Product information

Pros and cons

According to our NAS expert

This bundle includes 1 hard drive of 4TB with your NAS, so you can store files right away.
You can place 2 M.2 NVMe SSDs in the NAS and create a fast cache memory so you can open often-used files faster.
The hard drives include 3 years of Seagate Rescue Services for data recovery.
You have to install the hard drives that are included with this bundle yourself.
With 1 hard drive, you can't make back-ups and there's a larger risk of files getting lost.

Description

Store all your media, documents, and other files in 1 central place with the Synology DS725+ + Seagate IronWolf 4TB. This bundle includes 1 Seagate IronWolf hard drive with a 4TB storage capacity. This way, you can store all your files right away. The DS725+ has 2 Ethernet ports. Via the 1 GbE port, you can connect older devices. The 2.5 GbE port has a faster connection than the 1 GbE port, which is useful when you transfer a lot of files. For example, datasets, 4K videos, or an entire photo library. You can also place 2 NVMe SSDs in the NAS for a fast cache memory or expand the RAM when you use the NAS with multiple people at the same time. This way, files load faster and you're not bothered by slowdowns while you work. The Seagate IronWolf drives have a 5900RPM rotation speed on average. Thanks to this, you can quickly load files. With this bundle, you get 4TB of storage. This is enough for use at home or at a small office. You receive 3 years of Seagate Rescue Services for data recovery with the hard drives.

Tips for using this product

This is what you get

Synology DS725+

Manual
Mounting materials
Power cord
2x RJ-45 LAN cable

Seagate IronWolf 4TB

Manual
3 years of Seagate Rescue Services

Contents of this set

This set has been composed by our expert.

Synology DS725+

Review is 9,9 out of 10, based on 3 reviews.

Seagate IronWolf 4TB

Review is 8,7 out of 10, based on 201 reviews.

Show all specifications

Reviews

Rating

5 stars

4 stars

3 stars

2 stars

1 star

Most helpful reviews

Review is 10 out of 10.

Nice and fast

Fast
Expandable

This is compared to the 216play or if you step from a Trabant into a Ferrari

Review by:
Maurice
Date:
3 October 2025
Translation:
Automatically translated from Dutch

Review is 10 out of 10.

Nice product

Compact
Quiet
To be upgraded (memory)
After my third Synology NAS still no

I already have experience with Synology NAS (DS920+ and DS1522+).

Installation is easy, the quality is excellent, and the software offers more than just data storage.

I use the DS725+ as a ROON server for music at home and on the road. It works perfectly, and with two 4TB hard drives in RAID 1, it holds enough music for hours of listening pleasure.

In my case, it's a great device, and I think anyone looking for a NAS will be happy with it.

Review by:
Peter Sips
Date:
21 February 2026
Translation:
Automatically translated from Dutch

Specifications

Product

Product
	Product number	967763
	Manufacturer code	DS725+
	Brand	Synology
	Warranty	2 years
	Processing of your defect	Via Coolblue

Memory properties

Memory properties
	Built-in hard drive
	Number of hard drive slots	2
	Suitable for hard drive size	2.5-inch SSD, 3.5-inch HDD, M.2 NVMe
	Nubmber of M.2 connectors	2
	RAID	Basic, JBOD, RAID 0, RAID 1, Synology Hybrid RAID
	Internal RAM	4 GB
	Total number of RAM slots	2
	Expandable memory
	Maximum internal memory	32 GB
	Memory type	SO-DIMM DDR4

Connectors and connections

Connectors and connections
	Connection type	Wired
	LACP Link aggregation
	Thunderbolt connector
	Bluetooth
	Number of Ethernet ports	2
	Number of 2.5Gbps Ethernet ports	1
	Number of 1Gb/s Ethernet ports	1

Functions

Functions
	NAS functions	Backup server, Download server, FTP server, Mail server, Media server, Photo server, Surveillance station, VPN server, Web server
	NAS application center
	Maximum number of shared folders	128
	Maximum number of local users`	512
	Plex support
	Type of Plex support	HD Ready (720p)
	Number of IP camera licenses included	2
	DLNA
	UPnP AV support
	FTP server
	On/off switch
	Automatic switch on/off
	Kensington lock
	Apple Time Machine support
	Chromecast support
	Suitable for IFTTT
	Recommended for use	Making a backup, Media streaming, Personal cloud

Processor properties

Processor properties
	Processor brand	AMD
	Processor family	Ryzen
	Processor cores	Dual-Core (2)
	Clock speed	2,6 GHz

Physical properties

Physical properties
	Depth	22,3 cm
	Width	10,6 cm
	Height	16,6 cm
	Type NAS	Upright
	Color	Black
	Weight	1510 g

Product

Product
	Product number	905240
	Manufacturer code	ST4000VN006
	Brand	Seagate
	Warranty	3 years
	Processing of your defect	Via Coolblue

Storage properties

Storage properties
	Total storage capacity	4 TB
	Hard drive type	3.5 inches

Connection and compatibility

Connection and compatibility
	SATA connector type	S-ATA (III)
	Compatible with product type	NAS

Speed and performance

Speed and performance
	HDD's RPM	5400 rpm
	Speed class	Basic
	Cache memory	256 MB
	Data recovery service	3 years

General properties

General properties
Width	10,2 cm
Height	2,6 cm
Depth	14,7 cm

This is the one

Synology DS725+ + Seagate IronWolf 4TB

Review is 9,9 out of 10, based on 3 reviews.

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Synology DS725+ + Seagate IronWolf 4TB