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