Synology Network Attached Storage DX1215II DiskStation 12bay (Diskless)

Easily add 12 bays to your DiskStation

With its 12-bay desktop form factor, the DX1215II provides generous storage expansion for Synology DiskStation1 whenever needed with minimal impact on the deployment footprint.

Online volume and storage expansion

Add a new volume to your storage, or seamlessly expand RAID volumes on Synology DiskStation without reformatting drives with online volume expansion through DiskStation Manager (DSM) to minimize service disruptions.

Expand DiskStation with Synology drives

Developed in tandem with Synology storage systems, Synology enterprise storage drives deliver proven interoperability and high reliability through rigorous validation and compatibility testing.

Simple setup and management

Plug-and-play design makes adding the DX1215II to an existing DiskStation simple. Unified drive management through DSM ensures health monitoring, storage allocation, and maintenance tasks are centralized and easily accessible to administrators.
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+
Notes
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
12
Compatible Drive Type
3.5″ SATA HDD
2.5″ SATA HDD
2.5″ SATA SSD
(See all supported drives: https://www.synology.com/en-us/compatibility)
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
Notes
It is strongly recommended that you only install drives listed on your devices 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
Power
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)
Notes
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Temperature
Operating Temperature
5^oC to 35^oC (40^oF to 95^oF)
Storage Temperature
-20^oC to 60^oC (-5^oF to 140^oF)
Relative Humidity
5% to 95% RH
Others
System Fan
120 mm x 120 mm x 2 pcs
Easy Replacement System Fan
Yes