Synology DX525 5-Bay Expansion Enclosure

BH #SYDX525 • MFR #DX525
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Synology DX525 5-Bay Expansion Enclosure
Key Features
  • For Select Synology NAS Enclosures
  • 5 x 3.5/2.5" SATA Drive Bays
  • 1 x USB-C Expansion Port
  • Hot-Swappable Drive Bays
The DX525 5-Bay Expansion Enclosure from Synology allows users to easily add five 3.5/2.5" SATA drive bays to their DS1825+, DS1525+, DS925+, or DS725+. Its drive bays are hot-swappable, and included is a USB-C expansion cable, an accessory pack, and an AC power cord. Protection is provided by a limited 3-year warranty.
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Synology DX525 Overview

The DX525 5-Bay Expansion Enclosure from Synology allows users to easily add five 3.5/2.5" SATA drive bays to their DS1825+, DS1525+, DS925+, or DS725+. Its drive bays are hot-swappable, and included is a USB-C expansion cable, an accessory pack, and an AC power cord. Protection is provided by a limited 3-year warranty.

Storage Expansion without Downtime
Easily add five additional drive bays to your Synology DiskStation. The DX525 supports both 2.5 and 3.5" SATA drives and features plug-and-play setup and hot-swap capability for uninterrupted operation during capacity expansion.
Dedicated Local Backup Solution
The Synology DX525 provides a dedicated local backup solution for your Synology DiskStation. When configured as a separate volume, it safeguards data on its local disks in case of system failure.
Online Volume Expansion
Managed through the host NAS's DiskStation Manager (DSM), the DX525's additional bays are immediately available upon connection. On-the-fly volume expansion ensures uninterrupted service and storage expansion on the host.
Rapid Deployment
Handle both scheduled storage upgrades and sudden demands with ease. With plug-and-play compatibility and support for hot-swapping drives, the DX525 is ready to use as soon as it's connected to the host device, allowing for drive installation without powering down the system. Online volume expansion means that volumes can added or expanded without service interruptions.
Backed by Synology's Limited 3-Year Warranty
Get the most out of your DX525 with comprehensive hardware replacement and premium technical support, both included in Synology's three-year limited warranty. Extend or add advanced services to your coverage in select regions with Extended Warranty or Extended Warranty Plus.
UPC: 846504005291

Synology DX525 Specs

General
Number of Bays
5x 2.5"/3.5" SATA III
Inputs/Outputs
1x USB-C
Media Card Slots
No
PCI Expansion
No
Electrical
Input Power
100 to 240 VAC, 50 / 60 Hz
Power Consumption
35.37 W (Typical)
7.0 W (Standby)
PSU
1 x 90 W
Physical
Operating Conditions
32 to 104°F / 0 to 40°C at 5 to 95% Humidity
Storage Conditions
-4 to 140°F / -20 to 60°C at 5 to 95% Humidity
Certifications
BIS, BSMI, CE, EAC, FCC, KC, RCM, RoHS, UKCA, VCCI
Cooling
2x 92 mm Fans
Noise Level
20.4 dBA
Dimensions
9.1 x 8.8 x 6.5" / 230 x 223 x 166 mm
Weight
5.5 lb / 2.5 kg
Packaging Info
Package Weight
9.475 lb
Box Dimensions (LxWxH)
12.3 x 11.9 x 11.5"

Synology DX525 Reviews

See any errors on this page?

Is this compatible with the DS1618+?

Is this compatible with the DS1618+?
Asked by: Billy
The correct expansion enclosure for the Synology DiskStation DS1618+ is the Synology DX517 5-Bay Expansion Enclosure, BH #SYDX517, http://bit.ly/4lmzYol. The Synology DX525 5-Bay Expansion Enclosure, BH #SYDX525, is not compatible with the Synology DiskStation DS1618+.
Answered by: Elchanan P
Date published: 2025-06-27
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