Synology DX517 5-Bay Expansion Unit
Expand your Synology NAS storage seamlessly with the Synology DX517 5-Bay Expansion Unit.
Designed to provide flexible and reliable storage expansion, the DX517 allows you to add up to five
additional drive bays without interrupting your existing services. Whether you're managing growing
business data, multimedia libraries, backups, or surveillance recordings, the DX517 delivers a simple
and efficient solution for increasing storage capacity.
Connected through a high-speed eSATA interface, the DX517 ensures stable data transmission while
maintaining optimal system performance. It supports both 3.5-inch and 2.5-inch SATA HDDs and SSDs,
allowing users to customize storage according to their needs. Hot-swappable drive bays simplify
maintenance and upgrades, minimizing downtime.
Built with Synology's reliable hardware architecture, the DX517 integrates perfectly with compatible
Synology NAS models, making storage expansion effortless and scalable as your data requirements grow.
Product Specifications
| Product Type |
5-Bay Expansion Unit |
| Brand |
Synology |
| Model |
DX517 |
| Drive Bays |
5 x SATA Drive Bays |
| Supported Drives |
3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD |
| Maximum Raw Capacity |
Depends on installed drives and compatible NAS model |
| Expansion Interface |
eSATA |
| Hot-Swappable Drives |
Yes |
| Cooling Fans |
2 x 80 mm System Fans |
| Power Supply |
Internal Power Supply |
| LED Indicators |
Power, Drive Status, Link Status |
| Compatible Systems |
Compatible Synology NAS models supporting DX517 expansion |
| Operating Temperature |
5°C to 40°C (41°F to 104°F) |
| Storage Temperature |
-20°C to 60°C (-5°F to 140°F) |
| Dimensions |
157 x 248 x 233 mm |
| Weight |
Approximately 3.91 kg |
Why Should You Buy the Synology DX517?
- Expand your Synology NAS with five additional drive bays.
- Increase storage capacity without replacing your existing NAS.
- High-speed eSATA connection ensures stable and reliable performance.
- Supports both 3.5" and 2.5" SATA HDDs and SSDs.
- Hot-swappable drive bays enable quick drive replacement with minimal downtime.
- Ideal for business data, backups, media servers, virtualization, and surveillance storage.
- Simple plug-and-play integration with compatible Synology NAS devices.
- Reliable cooling system helps maintain optimal drive performance.
- Scalable storage solution that grows with your business needs.
- Designed and engineered by Synology for dependable long-term operation.
Frequently Asked Questions (FAQ)
Q1: What is the Synology DX517 used for?
Answer: The DX517 is a storage expansion unit that adds up to five additional drive bays
to compatible Synology NAS systems, allowing users to increase storage capacity without replacing their NAS.
Q2: Which drives are compatible with the DX517?
Answer: It supports 3.5-inch SATA HDDs, 2.5-inch SATA HDDs, and 2.5-inch SATA SSDs.
Q3: Does the DX517 support hot-swappable drives?
Answer: Yes. The hot-swappable drive bays allow drives to be replaced or upgraded without shutting down the system in supported configurations.
Q4: How does the DX517 connect to a Synology NAS?
Answer: The expansion unit connects using a dedicated high-speed eSATA cable for reliable communication between the NAS and the expansion chassis.
Q5: Can I use the DX517 as a standalone storage device?
Answer: No. The DX517 is an expansion unit and requires a compatible Synology NAS to operate.
