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Key Features
- For Select Synology DiskStation Models
- 5 x 3.5"/2.5" SATA Drive Bays
- 1 x eSATA Port
- Hot-Swappable & Screwless Design
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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For a ds920+, with two 4tb and two 12tb drives ...
For a ds920+, with two 4tb and two 12tb drives running out of space with Plex. Would adding this expansion module work?
Yes, the DX517 5-Bay Expansion Enclosure is a good way to expand the capacity of your DS920+.
Date published: 2024-05-01
What is in the Accessory Pack that comes in the ...
What is in the Accessory Pack that comes in the box?
Drive keys and mounting screws.
Date published: 2019-10-23
Is this enclosure compatible with the 920+?
Is this enclosure compatible with the 920+?
Yes. Per Synology...
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
Supports creating volumes on a single unit only:
18 series:DS218+
16 series:DS216+, DS216+II, NVR216
15 series:DS415+
Date published: 2023-02-18
What speed does the eSATA port support? Can it do ...
What speed does the eSATA port support? Can it do 600MB/sec (6Gbps)?
600MB/sec is the theoretical maximum supported by the eSATA port specification. In real life, expect about 250 MB/sec max transfer rate between the DX517 and the host NAS. If host Synology NAS has 1 Gbps ethernet connections, that will be your theoretical bottleneck, not the eSATA connection.
Date published: 2024-01-24
Is this compatible with the DS1821+?
Is this compatible with the DS1821+?
Yes it is and it supports creating volumes across different units.
Date published: 2023-06-25
What's the largest drive that will work with this ...
What's the largest drive that will work with this unit?
The Synology DX517 5-Bay Expansion Enclosure does not limit the drive capacity.
Date published: 2025-08-27
Does the DX517 work with DS415+?
Does the DX517 work with DS415+?
Yes but it only operates as a new volume (you can't expand the volume from your DS415+ across the expansion unit).
Date published: 2020-09-22
Does the expansions need to have all there bays ...
Does the expansions need to have all there bays filled with drives or at least three drives be a good starting point to start?
You can choose to use as many or few of the Synology DX517 5-Bay Expansion Enclosure's drive bays as you would like to when adding the enclosure to an existing NAS setup.
Date published: 2023-12-03