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Expansion Unit DX1215II
Plug-and-play storage expansion for Synology DiskStation

Expansion Unit DX525

Synology Products
Synology Expansion Unit
Synology DX1215II 12 bay Expansion Unit
#DX1215II
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Overview:

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.


  • Seamless Storage Expansion
    Add 12 additional drive bays to your Synology DiskStation
  • Best Fit With Synology Enterprise HDD
    Use with Synology HAT5300 SATA HDDs for high performance and verified compatibility
  • Easy Hardware Setup
    Plug-and-play design makes upgrading storage easy
  • Extended After-Sales Support
    Backed by Synology’s 5-year limited warranty

Features:

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.


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.


Compact Storage for Easy Expansion

It is easy to expand your Synology DiskStation1 with 12 additional 3.5 inch drive bays with the DX1215II expansion unit. The plug-and-play design adds drives to the host DiskStation without additional setup or downtime.

Product Views:

Technical Specifications:

Hardware Specifications:
Applied Models
  • FS series: FS1018
  • 19 series: DS2419+II, DS2419+
  • 18 series: DS3018xs
  • 17 series: DS3617xsII, DS3617xs
  • 15 series: DS3615xs, DS2415+, DS2015xs
  • 13 series: DS2413+
  • 12 series: DS3612xs
  • 11 series: DS3611xs, DS2411+
Storage
Drive Bay(s) 12
Compatible Drive Type
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive
RAID Management through Synology DSM
External Ports
Expansion Port 1
Appearance
Size (Height X Width X Depth) 270 mm x 300 mm x 340 mm
Weight 9.02 kg
Power
Power Recovery Synchronized with the Synology DiskStation
Power Supply Unit / Adapter 550W
AC Input Power Voltage 100V to 240V 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)
Note Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Temperature
Operating Temperature 5°C to 40°C (40°F to 104°F)
Storage Temperature -10°C to 70°C (-15°F to 155°F)
Relative Humidity 5% to 95% RH
Others
System Fan 120 mm x 120 mm x 2 pcs
Easy Replacement System Fan
Noise Level 27.2 dB(A)
Note Noise 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%
Certification
  • FCC
  • CE
  • BSMI
  • EAC
  • RCM
  • KC
Warranty 5 Years
Environment & Packaging
Environment RoHS Compliant
Packaging Content
  • Main Unit x 1
  • Accessory Pack x 1
  • AC Power Cord x 1
  • AC Power Adapter x 1
  • Expansion Cable: Infiniband X 1
Optional Accessories
  • Enterprise Series 3.5" SATA HDD: HAT5300 Series
  • Plus Series 3.5" SATA HDD: HAT3300 Series
  • Enterprise Series 2.5" SATA SSD: SAT5200 Series

*Model specifications are subject to change without notice. Please refer to www.synology.com for the latest information.

Documentation:

Download the Synology Expansion Unit DX1215II Datasheet  (PDF).

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Warranty Icon

5-year warranty

At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.

Pricing Notes:

Synology Products
Synology Expansion Unit
Synology DX1215II 12 bay Expansion Unit
#DX1215II
Our Price: Request a Quote