Synology Disk Expansion DX517

Supports creating volumes across different units:
21 series: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+

Drive Bays: 5
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity: 80TB (16 TB drive x 5) (Capacity may vary by RAID types)
Hot Swappable Drive: Yes
eSATA Port: 1
Power Supply Unit / Adapter: 200W
AC Input Power Voltage: 100V to 240V AC

*Belum termasuk HDD