DX517

Expansion Unit DX513

Effortless capacity expansion for Synology DiskStation solutions on-the-fly.

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.

Hardware Specifications 
Applied ModelsDS1819+
DS1817+
DS1817
DS1815+
DS1618+
DS1517+
DS1517
DS1515+
DS1515
DS1019+
DS918+
DS916+
DS718+
DS716+
DS716+II
DS415+
DS218+
DS216+
DS216+II
NVR1218
NVR216
NotesSome models support independent volumes creation only. Please find more details here.
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 Bays5
Compatible Drive Type* (See all supported drives)3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity70 TB (14 TB drive x 5) (Capacity may vary by RAID types)
Hot Swappable Drive
RAID Management through Synology DSM
External Ports
eSATA Port1
Appearance
Size (Height x Width x Depth)157 mm x 248 mm x 233 mm
Weight3.91 kg
Power
Power RecoverySynchronized with the Synology DiskStation
Power Supply Unit / Adapter200W
AC Input Power Voltage100V to 240V AC
Power Frequency50/ 60Hz, Single Phase
Power Consumption*29.9 W (Access) 
2.4 W (HDD Hibernation)
British Thermal Unit102.02 BTU/hr (Access) 
8.19 BTU/hr (HDD Hibernation)
NotesPower consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Temperature
Operating Temperature5°C to 40°C (40°F to 104°F)
Storage Temperature-10°C to 70°C (15°F to 155°F)
Relative Humidity5% to 95% RH
Others
System Fan80 mm x 80 mm x 2 pcs
Easy Replacement System Fan
Noise Level*21.5 dB(A)
NotesNoise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
CertificationFCC
CE
BSMI
Warranty3-year hardware warranty, extendable to 5-year coverage - EW201
NotesThe warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment & Packaging
EnvironmentRoHS Compliant
Packaging ContentMain Unit X 1
Accessory Pack X 1
AC Power Cord X 1
Expansion Cable: eSATA X 1
Quick Installation Guide X 1