Disk Array Synology DX525 5-bay expansion unit

Name: Disk Array Synology DX525 Desktop DX525
Brand: SYNOLOGY
SKU: 11451854
Price: 583.99 EUR
Availability: InStock

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Disk Array Synology DX525 Desktop Expansion Unit 5-bay for 3.5" HDD/SSD, SATA, Hot-swap, Black

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Short description

Synology DX525 is a 5-bay desktop expansion unit for adding storage to compatible Synology systems. It supports five 3.5" SATA HDD or SSD drives with hot-swap capability, features two fans, Kensington cable lock, LED indicators and single AC power supply (100–240V, 50/60Hz). Compact and quiet (20.4 dB), it suits small and medium business environments for capacity expansion and data redundancy.

Available at price 583.99 €: 6 pcs.

Total available for order: 18 pcs.

Warranty: 2 Years

SKU: 11451854

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2b. Kengaraga str., Riga, Latvia, LV-1063

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From 4.99 € (Weight: 4.30 kg)

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36 months installment: from 16.22 euros per month

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Product information

Description

The Synology DX525 is a desktop disk array that adds five additional drive bays to a Synology DiskStation for expanded local storage. It supports both 2.5" and 3.5" SATA HDDs and SSDs, offers plug-and-play setup and hot-swap capability, and integrates with the host NAS through DiskStation Manager (DSM) for online volume expansion. The compact black chassis is suitable for small and medium business environments where seamless capacity growth is required.

Advantages

DX525 enables storage expansion without downtime by providing hot-swappable bays and on-the-fly volume growth via the host DSM. It can act as a dedicated local backup volume to protect data on its own disks in case of host failure. The unit is compatible with Synology drives for consistent performance and is covered by a three-year limited warranty with optional extended coverage.

Suitable for

Expanding storage capacity of a Synology DiskStation
Local backup volume for data redundancy
Small and medium business desktop deployments
Environments requiring mixed HDD and SSD support

Key specifications

Model: Synology DX525
Supported drives: 2.5" and 3.5" SATA HDD and SSD
Number of drive bays: 5
Chassis type: Desktop
Colour: Black
Weight: 2.46 kg
Interface: Serial ATA (via host DiskStation)

How to use

Connect the DX525 to a compatible Synology DiskStation following the host's expansion port instructions. Install supported 2.5" or 3.5" SATA drives into the trays, then power on the unit. Manage and integrate the additional bays through the host NAS DiskStation Manager (DSM) to create or expand volumes. Drives are hot-swappable, allowing replacement or addition without shutting down the system.

Usage recommendations

Use Synology-certified drives for best reliability and consistent performance. Configure the DX525 as a separate local backup volume if you require dedicated on-site data protection, and consider extending the warranty for longer hardware coverage.

Specifications

Number of storage drives supported:: 5
Supported storage drive types:: HDD & SSD
Chassis type:: Desktop
Weight:: 2.46 kg
Product colour:: Black

All features

Storage

Number of storage drives supported:: 5
Storage drive sizes supported:: 3.5, 2.5
Supported storage drive types:: HDD & SSD
Hot-swap drive bays:: Yes
Supported storage drive interfaces:: Serial ATA

Power

Number of power supply units:: 1
AC input frequency:: 50/60
AC input voltage:: 100 - 240

Operational conditions

Operating relative humidity (H-H):: 5 - 95
Storage temperature (T-T):: -20 - 60
Operating temperature (T-T):: 0 - 40

Design

Chassis type:: Desktop
Cable lock slot:: Yes
LED indicators:: Y
Product colour:: Black
Number of fans:: 2 fan(s)
Fan diameter:: 92 mm
Cable lock slot type:: Kensington

Performance

Noise level: Not only energy saving helps to protect the environment but also noise level reduction. Noise level reduction up to 3 dB really means noise level reduction in 2 times. For example, a device with noise level 39 dB (А) will be two times quieter than a devise with a noise level 42 dB (А). Energy-saving certificate that shows noise level plays the role of an additional objective indicator basing on which You can successfully choose a product.: 20.4 dB
Device class:: Small & Medium Business

Weight & dimensions

Weight:: 2.46 kg
Height:: 166 mm
Width:: 230 mm
Depth:: 223 mm

Other features

Certification:: FCC CE BSMI UKCA EAC VCCI RCM KC BIS
Compliance certificates:: RoHS

Packaging content

Cables included:: AC
Power cables quantity:: 1

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Instructions

mmo_130727193_1747139652_1772_1170683.pdf

synology-DX525-11451854.pdf

Description

Instructions

mmo_130727193_1747139652_1772_1170683.pdf

synology-DX525-11451854.pdf

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Warehouse	Stock	Delivery to the store	Store Price
WH115	6	03.07.2026 Best delivery	583.99 €
EU85	2	03.07.2026 Best delivery	591.99 €
WH353	6	07.07.2026	623.99 €
EU3	2	03.07.2026 Best delivery	625.49 €

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Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
WH109	2	17.07.2026	608.99 €

583.99 €

Stock: 6

Delivery Date: 03.07.2026 Best delivery

Warehouse: WH115

591.99 €

Stock: 2

Delivery Date: 03.07.2026 Best delivery

Warehouse: EU85

623.99 €

Stock: 6

Delivery Date: 07.07.2026

Warehouse: WH353

625.49 €

Stock: 2

Delivery Date: 03.07.2026 Best delivery

Warehouse: EU3

Available only for legal entities

608.99 €

Stock: 2

Delivery Date: 17.07.2026

Warehouse: WH109

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Customer questions

FAQ

How much does the Disk Array Synology DX525 5-bay expansion unit cost, and is it available for purchase?

The price is 583.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Disk Array Synology DX525 5-bay expansion unit be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Disk Array Synology DX525 5-bay expansion unit online, and the application process is as simple as possible:

Select the product on the website and add it to your cart;
When placing your order, choose the payment method “Installments”;
Fill in the required details for the lending partner;
Receive a decision within a few minutes.

For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All SYNOLOGY products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SYNOLOGY service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: number of storage drives supported, supported storage drive types, chassis type, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for Disk Array Synology DX525 5-bay expansion unit?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

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