Built to support on-the-fly volume expansion and local backups, the DX517 5-Bay Expansion Enclosure from Synology adds an additional five 3.5″/2.5″ SATA drive bays to select DiskStation solutions.. Its drive bays are hot-swappable and screwless, and included is an AC power cord, an accessory pack, and an eSATA expansion cable. Protection is provided by a limited 3-year warranty.
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Synology DX517 5-Bay Expansion Enclosure

Last updated: 06-09-2023
Item Code: G1235GA
- 5-Bay 3.5″/2.5″ SATA Expansion
Estimated Delivery: Jul 01 – Jul 03
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CompareSynology DX517 External HDD/SSDÂ Overview
General Features
5-Bay 3.5″/2.5″ SATA Expansion
Add five additional drive bays to your Synology DiskStation DS1817+ and DS1517+. Supporting 2.5″ SATA hard drives and SSDs, as well as 3.5″ SATA hard drives, the DX517 is a flexible solution supporting on-the-fly volume expansion or serving as a local backup destination.
Online Volume Expansion
Managed from DiskStation Manager on the host NAS, the additional bays in the DX517 are immediately ready to be used once connected. On-the-fly volume expansion helps ensure that storage and services on the host are not interrupted during volume expansion.
Hot-Swappable Drive Tray Design
The hot-swappable drive trays of DX517 allow drive installation and replacement without powering down the system. A screwless drive tray design also helps reduce the time needed for system setup.
Dedicated Local Backup Solution
Synology’s DX517 can be used as a dedicated local backup solution for the Synology DiskStation DS1817+ or DS1517+. When created as a separate volume, the DX517 provides a great backup solution to its local hard disks in case of system failure.
Applied Models (Supports Creating Volumes Across Different Units)
21 Series
DS1821+, DS1621xs+, DS1621+, DVA3221
20 Series
DS1520+, DS920+, DS720+
19 Series
DS1819+, DS1019+, DVA3219
18 Series
DS1618+, DS918+, DS718+, NVR1218
17 Series
DS1817+, DS1817, DS1517+, DS1517
16 Series
DS916+, DS716+, DS716+II
15 Series
DS1815+, DS1515+, DS1515
Applied Models (Supports Creating Volumes On a Single Unit)
18 Series
DS218+
16 Series
DS216+, DS216+II, NVR216
15 Series
DS415+
Brand
SYNOLOGY
Category: Storage Devices
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