Synology

Synology DiskExpansion DX517 - 5-Bay Hot-Swap Expansion Unit, Black, eSATA (for DS1517+/DS1817+)

SKU 7624 Brand Synology EAN13 4711174722679
5-bay expansion unit (DX517) with hot-swappable 3.5"/2.5" drive bays, eSATA connection, up to 80 TB, low 21.5 dB noise; compatible with Synology DS1517+ and DS1817+.
NAS (Network Attached Storage) - M.2 Slots None
NAS (Network Attached Storage) - USB None
NAS (Network Attached Storage) - Hot-swap Yes

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 DiskStation. 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.


Storage drives installedNo
Installed storage drive typeNo
Total installed storage capacity0 TB
Supported storage drive typesHDD & SSD
Number of storage drives supported5
Maximum supported storage capacity80 TB
Supported storage drive interfacesSerial ATA, Serial ATA II, Serial ATA III
Storage drive sizes supported2.5, 3.5"
Hot-swap drive baysYes
USB connectivityNo
eSATA ports quantity1
Device classSmall & Medium Business
Chassis typeDesktop
Product colourBlack
LED indicatorsAlarm, Power, Status
Number of fans2 fan(s)
Noise level21.5 dB
Compatible productsSynology DS1817+, DS1517+
CertificationFCC B, CE B, BSMI B
Power supply unit (PSU) capacity200 W
Number of power supply units1
Power consumption (typical)29.9 W
AC input voltage100-240 V
AC input frequency50 - 60 Hz
Width248 mm
Depth233 mm
Height157 mm
Weight3.91 kg
Cables includedAC, eSATA
Operating temperature (T-T)5 - 40 °C
Operating relative humidity (H-H)5 - 95%
Storage temperature (T-T)-10 - 70 °C
Storage relative humidity (H-H)5 - 95%
Compliance certificatesRoHS
Harmonized System (HS) code84717020