Synology DX517 Diskless 5-Bay Expansion Unit, 157mm x 248mm x 233mm

The Synology DX517 5-bay Expansion Unit is a diskless storage solution designed to seamlessly expand the storage capacity of compatible Synology DiskStation NAS models. Measuring 157 mm in height, 248 mm in width, and 233 mm in depth, this expansion unit offers a compact yet robust design that integrates easily with existing Synology NAS systems. It supports the addition of five additional drive bays, allowing users to scale their storage infrastructure without the need for a full system upgrade. Compatibility with both 2.5-inch and 3.5-inch SATA drives ensures flexibility for different storage needs and performance requirements.

The DX517 features a hot-swappable drive tray design, which enables users to replace or add drives without shutting down the system, ensuring continuous operation and minimizing downtime. This capability is particularly valuable in environments where data availability is critical. Furthermore, when configured as a separate volume, the DX517 functions as a dedicated local backup solution for the connected Synology DiskStation. In the event of a system failure, this configuration allows for quick recovery by leveraging the locally stored backup data.

Designed with user convenience in mind, the DX517 incorporates an intuitive plug-and-use setup that simplifies integration into existing storage architectures. This allows users to instantly scale their RAID volume or deploy individual drives as dedicated backup destinations without requiring complex configurations or software adjustments. The expansion unit is also backed by Synology’s 3-year limited warranty, providing peace of mind and long-term support for its reliable performance.

In summary, the Synology DX517 offers an efficient and flexible way to expand storage capacity while enhancing redundancy and data protection capabilities. Its compatibility with various drive types, hot-swappable design, and ease of integration make it an ideal solution for businesses and individuals looking to optimize their NAS storage infrastructure. Whether used for online RAID expansion or as a dedicated backup device, the DX517 delivers dependable performance and scalability tailored to evolving data management needs.