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.
AC Input Power Voltage: 100 V to 240 V AC. Power Recovery Synchronized with the Synology DiskStation, Power Supply Unit / Adapter 200 W and Power Frequency 50/60 Hz, Single Phase.