Synology DX525 – 5-Bay Expansion Unit for Synology NAS
The Synology DX525 is a 5-bay expansion unit that adds storage to your Synology NAS through a USB-C expansion port. Hot-swappable, DSM-managed and enterprise-grade reliability.
Synology DX525 – 5-Bay Expansion Unit for Synology NAS
🧩 Overview
The Synology DX525 is a 5-bay expansion unit designed to expand the storage capacity of compatible Synology NAS systems.
With its dedicated expansion port (USB-C cable included), it offers seamless hot expansion and native DSM integration.
⚙️ Key Features
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5 bays for 3.5"/2.5" SATA HDD/SSD (hot-swap)
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Expansion port with included USB-C cable
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Volume expansion managed directly in DSM
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Two 92 mm fans with automatic control
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Noise level: 20.4 dB(A)
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Power supply: 90 W
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Dimensions: 166 × 230 × 223 mm
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Weight: 2.46 kg
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Warranty: 3 years (extendable to 5 years)
📦 Box Contents
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1 × Synology DX525
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1 × USB-C expansion cable
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1 × 90 W power adapter + power cord
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1 × screw kit
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User documentation
🔗 Compatibility
DS1825+, DS1525+, DS925+, DS725+
- Model
- Synology Expansion Unit DX525
- Number of disk bays
- 5
- Hotswap disk
- Oui
- Installed disk capacity
- 0TB
- Disk model installed
- None
- 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