DiskStation DS1825+

High-capacity & versatile storage solution in a desktop form factor 

Designed for scalability and performance

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8-bay with expansion

Up to 360 TB of raw storage with expansion unit1,2

High-speed storage

Two built-in 2.5GbE ports,over 2,239/1,573 MB/s sequential read/write3, and 10/25 GbE option4

Versatile applications

Back up multiple endpoints, manage 40 IP cameras5, or safely sync and share files across sites

Fast, out-of-the-box performance with 25GbE support

The DS1825+ features built-in 2.5GbE networking and supports both SATA SSDs and HDDs in 2.5"/3.5" internal bays, as well as M.2 NVMe drives via M.2 slots for use as cache.1,6 Its support for expansion cards allows configuration flexibility, supporting faster networking of up to 25GbE.4

It features two built-in 2.5GbE ports

Built-in dual

2.5GbE

networking

The DS1825+ achieves up to 2,239 MB/s read and 1,573 MB/s write speeds

Up to

2,239/1,573 MB/s

read/write3

And supports two M.2 NVMe slots for caching

2 x M.2

NVMe

cache6

It supports up to 25GbE networking

Up to

25GbE

networking with add-in card4

Expand capacity for evolving needs

Consolidate your data with up to 160 TB of raw storage across 8 bays. Need more space? Add capacity with two DX525 for up to 360 TB of total raw storage.2

The DS1825+ supports up to 360 TB of raw capacity after expansion when using 20 TB drives

8 bays

160 TB

18 bays

360 TB

Performance backed by Synology drives

Designed for Synology systems, Synology drives deliver consistent performance and unmatched reliability for your deployments.4

HDD

Enterprise Series 3.5" SATA

Plus Series 3.5" SATA

SSD

Enterprise Series 2.5" SATA

Enterprise Series M.2 NVMe

Extended protection with Extended Warranty

The DS1825+ is backed by Synology’s 3-year hardware warranty.12 An optional 2-year extended warranty is available in select regions to extend coverage to 5 years.

Hardware Overview

1 Status indicator

2 Alert indicator

3 Power button and indicator

4 LAN indicators

5 Drive status indicators

6 Drive trays

7 Drive tray lock

8 USB 3.2 Gen 1 port

9 Power port

10 Fans

11 PCI Express expansion slot

12 Kensington security slot

13 Expansion ports

14 2.5GbE RJ-45 ports

15 Reset button

16 USB 3.2 Gen 1 ports

Hardware Specifications

CPU	CPU Model	AMD Ryzen V1500B
	CPU Quantity	1
	CPU Core	4
	CPU Architecture	64-bit
	CPU Frequency	2.2 GHz
	Hardware Encryption Engine (AES-NI)
Memory	System Memory	8 GB DDR4 ECC SODIMM
	Memory Module Pre-installed	8 GB (8 GB x 1)
	Total Memory Slots	2
	Maximum Memory Capacity	32 GB (16 GB x 2)
Storage	Drive Bays	8
	Maximum Drive Bays with Expansion Unit	18 (DX522 x 2)
	M.2 Drive Slots	2 (NVMe)
	Compatible Drive Type* (See all supported drives)	3.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD
	Hot Swappable Drive
	Notes	"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. Storage Pool and volume creation require all drives to be listed as compatible on the device model's compatibility list. Each internal volume (may consist of multiple drives) is expandable up to 108TB.
External Ports	RJ-45 2.5GbE LAN Port	2
	USB 3.2 Gen 1 Port	3
	Expansion Port	2
	Expansion Port Type	USB Type-C
PCIe	PCIe Expansion	1 x Gen3 x8 slot (x4 link)
Appearance	Size (Height x Width x Depth)	166 mm x 343 mm x 243 mm
	Weight	6 kg
Others	System Fan	120 mm x 120 mm x 2 pcs
	Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode
	Easy Replacement System Fan
	Brightness Adjustable Front LED Indicators
	Power Recovery
	Noise Level*	23.8 dB(A)
	Scheduled Power On / Off
	Wake on LAN / WAN
	Power Supply Unit / Adapter	250 W
	AC Input Power Voltage	100 V to 240 V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption*	60.1 W (Access) 18.34 W (HDD Hibernation)
	British Thermal Unit	204.94 BTU/hr (Access) 62.54 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: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature	Operating Temperature	0°C to 40°C (32°F to 104°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
Certification	FCC CE BSMI VCCI RCM UKCA EAC CCC KC BIS
Warranty	3-year hardware warranty, extendable to 5-year coverage - EW201
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) EW201/EW202 is only available in Asia, Africa, and Oceania. Refer to the Extended Warranty website for details on supported countries/regions. (Learn more)
Environment	RoHS Compliant
Packaging Content	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2
Optional Accessories	DR4 ECC SODIMM: 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 Series 25GbE Network Interface Card: E25G30-F2 10GbE Network Interface Card: E10G30-F2/E10G30-T2/E10G18-T1