Synology DX525 – 5× HAT3300 8 TB (40 TB) – 5-Bay Expansion Unit
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5× HAT3300 8 TB (40 TB) – 5-Bay Expansion Unit
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5-Bay Expansion Unit for Synology NAS

Synology DX525 – 5× HAT3300 8 TB (40 TB) – 5-Bay Expansion Unit

In stock
€1,780.80
VAT included Delivered within 24/48h

The Synology DX525 with 5 × 8 TB HAT3300 drives provides 40 TB of additional storage for your NAS. USB-C expansion, DSM integration and 3-year Synology warranty.

Variants
Synology DX525 – 5× HAT3300 8 TB (40 TB) – 5-Bay Expansion Unit
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
Synology DX525 – 5× HAT3300 2 TB (10 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT3300 4 TB (20 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT3300 6 TB (30 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT3300 12 TB (60 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT3300 16 TB (80 TB) – 5-Bay Expansion Unit
+6
+6
Synology DX525 – 5× HAT5300 20 TB (100 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT5300 16 TB (80 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT5300 12 TB (60 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT5300 8 TB (40 TB) – 5-Bay Expansion Unit
Synology DX525 – 5× HAT5300 4 TB (20 TB) – 5-Bay Expansion Unit

 

Synology DX525 – 5× HAT3300 8 TB (40 TB total)

🧩 Overview

The Synology DX525 is a 5-bay expansion unit equipped with 5 Synology HAT3300 8 TB drives, providing 40 TB of raw capacity for compatible NAS systems.
Featuring a USB-C expansion port, it offers hot-swappable installation and full DSM integration for professional-grade reliability and performance.

⚙️ Key Features

  • 5 bays for 3.5"/2.5" SATA HDD/SSD (hot-swap)

  • Includes 5 × Synology HAT3300 8 TB drives

  • USB-C expansion port (cable included)

  • DSM-integrated online volume management

  • Two 92 mm fans with automatic control

  • Noise level : 20.4 dB(A)

  • Power supply : 90 W

  • Dimensions : 166 × 230 × 223 mm

  • Weight : 2.46 kg

📦 Box Contents

  • 1 × Synology DX525

  • 5 × Synology HAT3300 8 TB drives

  • 1 × USB-C expansion cable

  • 1 × 90 W power adapter + cord

  • 1 × screw kit

  • User manual

🛡️ Warranty

  • DX525 : 3-year hardware warranty, extendable to 5 years (EW201/EW202)

  • HAT3300 drives : 3-year Synology manufacturer warranty

🔗 Compatibility

DS1825+, DS1525+, DS925+, DS725+

Model
Synology Expansion Unit DX525
Number of disk bays
5
Hotswap disk
Oui
Installed disk capacity
40TB
Disk model installed
Synology HAT3300
Disk interface
Serial ATA 6Gb/s (SATA Revision 3)
Number of expansion ports
1 port USB Type-C
Scalable
No
PCIe Expansion
None
Size (Height x Width x Depth)
166 mm x 230 mm x 223 mm
Weight
2.5 kg
Sound level
20.4 dB(A)
Manufacturer's warranty
3-year hardware warranty
Form Factor
Desktop
Color
Black
Brand
Synology
Redundant power supply
No
Product Condition
New
DX525HAT330040TB
3701446236219
DX525HAT330040TB
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