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

**URL:** https://aio.lv/en/product--synology-dx525--11451854
**Data updated:** 2026-01-21 11:11 (EET)
**Category:** NAS Devices & Storage
**Manufacturer:** SYNOLOGY
**Manufacturer code:** DX525
**EAN:** 4711174725298
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 583.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 482.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--synology-dx525--11451854

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary 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.

## Long 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

### Storage

| Feature | Value |
|---|---|
| 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

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

### Operational conditions

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

### Design

| Feature | Value |
|---|---|
| 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

| Feature | Value |
|---|---|
| Noise level | 20.4 dB |
| Device class | Small & Medium Business |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 2.46 kg |
| Height | 166 mm |
| Width | 230 mm |
| Depth | 223 mm |

### Other features

| Feature | Value |
|---|---|
| Certification | FCC
CE
BSMI
UKCA
EAC
VCCI
RCM
KC
BIS |
| Compliance certificates | RoHS |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | AC |
| Power cables quantity | 1 |

## 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 08.07.2026 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. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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. More information about warranty service: https://aio.lv/en/warranty

### 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.

## Image

https://aio.lv/img/cache/product/11451854/66144138_large.webp