Synology Expansion Unit DX517 3.5" bays, Tower, 1x eSATA - Includes 5-Bay
5-bay 3.5"/2.5" SATA expansion
Easily add 5 additional drive bays to Synology DiskStation1. Supporting both 2.5" and 3.5" SATA drives, 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 ensures 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 easy drive installation and replacement without powering down the system. Screwless drive tray design reduces the time needed for system setup.
Dedicated local backup solution
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.
Applied Models
Supports creating volumes across different units
23 series:DS1823xs+, DS923+, DS723+
22 series:DS1522+
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+II, DS716+
15 series:DS1815+, DS1515+, DS1515
Supports creating volumes on a single unit only
18 series:DS218+
16 series:DS216+II, DS216+, NVR216
15 series:DS415+
Notes
For more information on the compatibility of each expansion unit, please refer to this article.
Please upgrade to DSM 6.2.1-23824-5 or later version before using it with 15 and 16 series models (excluding DS1515, DS716+, and DS716+II).
To have better performance, we recommend creating storage volumes physically located within the same NAS or Expansion Unit, rather than creating volumes across your NAS and Expansion Unit.
Storage
Drive Bays
5
Compatible Drive Type* (See More on https://www.synology.com/en-global/compatibility?search_by=drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Hot Swappable Drive*
Yes
RAID Management through Synology DSM
Yes
Notes
Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
External Ports
eSATA Port
1
Appearance
Size (Height x Width x Depth)
157 mm x 248 mm x 233 mm
Weight
3.91 kg
Power
Power Recovery
Synchronized with the Synology DiskStation
Power Supply Unit / Adapter
200 W
AC Input Power Voltage
100V to 240V AC
Power Frequency
50/60 Hz, Single Phase
Power Consumption
9.9 W (Access)
2.4 W (HDD Hibernation)
British Thermal Unit
102.02 BTU/hr (Access)
8.19 BTU/hr (HDD Hibernation)
Notes
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Temperature
Operating Temperature
5°C to 40°C (40°F to 104°F)
Storage Temperature
-10°C to 70°C (15°F to 155°F)
Relative Humidity
5% to 95% RH
Others
System Fan
80 mm x 80 mm x 2 pcs
Easy Replacement System Fan
Yes
Noise Level*
21.5 dB(A)
Notes
Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75°C; Humidity: 58.2-61.8%
Certification
FCC
CE
BSMI
Environment & Packaging
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 1
Expansion Cable: eSATA X 1
Quick Installation Guide X 1
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