Synology DX1215 II 12-Bay Expansion Unit
  • Synology DX1215 II 12-Bay Expansion Unit

Synology DX1215 II 12-Bay Expansion Unit

Indent Item


Packages for in-stock items are generally dispatched within 7 days after receipt of payment and are shipped via NZPOST with tracking and drop-off without signature. Whichever shipment choice you make, we will provide you with a link to track your package


Please do not immediately return your goods if you find them to be damaged or you are claiming a warranty repair. Please contact us first for an RMA authorization before returning your item.


Hardware Specifications

Applied Models

Supports creating volumes across different units

FS series:FS1018
19 series:DS2419+, DS2419+II
18 series:DS3018xs
17 series:DS3617xs, DS3617xsII
15 series:DS3615xs, DS2415+, DS2015xs
13 series:DS2413+
12 series:DS3612xs
11 series:DS3611xs, DS2411+


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.
DSM version requirement: 6.2.4-25556 or later version.


Drive Bays: 12

Compatible Drive Type* (See all supported drives)


Maximum Internal Raw Capacity: 192 TB (16 TB drive x 12) (Capacity may vary by RAID types)

Hot Swappable Drive: Yes

RAID Management through Synology DSM: Yes


It is strongly recommended that you only install drives listed on your device's compatibility list. Storage pool and volume creation processes may fail when using unverified drives. Synology is unable to provide technical support for devices using unsupported components.

External Ports

Expansion Port: 1


Size (Height x Width x Depth): 270 mm x 300 mm x 340 mm

Weight: 9.02 kg


Power Recovery

Synchronized with the Synology DiskStation

Power Supply Unit / Adapter: 550 W

AC Input Power Voltage: 100 V to 240 V AC

Power Frequency: 50/60 Hz, Single Phase

Power Consumption*

51.23 W (Access)
21.71 W (HDD Hibernation)

British Thermal Unit

174.69 BTU/hr (Access)
74.03 BTU/hr (HDD Hibernation)


Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).


Operating Temperature: 5°C to 35°C (40°F to 95°F)

Storage Temperature: -20°C to 60°C (-5°F to 140°F)

Relative Humidity: 5% to 95% RH


System Fan: 120 mm x 120 mm x 2 pcs

Easy Replacement System Fan: Yes

Noise Level*: 27.2 dB(A)


Noise Level Testing Environment: Fully loaded with Seagate ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology expansion unit at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75°C; Humidity: 58.2-61.8%.

Packaging Content

Main Unit X 1
User's Guide X 1
Accessory Pack X 1
AC Power Cord X 1
Expansion Cable: Infiniband X 1