Price: $499.99
(as of Jul 22,2025 23:14:19 UTC – Details)

Synology DX517 offers simple storage capacity expansion solution for your Disk Station through its intuitive plug-n-use design. DX517 allows you to instantly scale up to 5 additional hard drives, so that you can expand RAID volume online or deploy the drives as a dedicated local backup destination for your Disk station. Synology DX517 is backed by Synology’s 3-year limited warranty.
Easily add 5 additional drive bays to Synology NAS. Please check Synology website for compatible models
Supporting both 2.5″ and 3.5″ SATA drives
Hot-swappable drive tray design
Synology DX517 can be used as a dedicated local backup solution for the Synology DiskStation. When created as a separate volume, the DX517 provides a great backup solution to its local hard disks in case of system failure