SYNOLOGY 

SYNOLOGY 12 BAY DISKSTATION DX1215II (DISKLESS)

Mfg Part Number:  DX1215II  
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Price: $1,168.33
Quantity:
In Stock: 5
Last Updated: Dec 31, 2025
No Sales Tax except these states
, PO and Wire.

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.

Backed by Synology drives

Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

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.

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,3 providing responsive technical support and hardware replacement services to maximize your return on investment.

Synology Replacement Service (SRS)

SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity.

Main Specification
General Information
Manufacturer Synology, Inc
Manufacturer Part Number DX1215II
Manufacturer Website Address http://www.synology.com
Brand Name Synology
Product Model DX1215II
Product Name Expansion Unit DX1215II
Packaged Quantity 1
Product Type Drive Enclosure
Technical Information
Number of Hard Drives Supported 12
Number of Hard Drives Installed 0
Number of Solid State Drive Supported 12
Number of Solid State Drive Installed 0
I/O Expansions
Number of Total Expansion Bays 12
Number of 2.5"/3.5" Bays 12
Hot Swappable Bays Yes
Interfaces/Ports
Drive Interface SATA
Host Interface Infiniband
Software
Operating System Supported DiskStation Manager
Physical Characteristics
Cooling Fan Yes
Form Factor External
Height 10.6"
Width 11.8"
Depth 13.4"
Weight (Approximate) 19.89 lb
Miscellaneous
Package Contents
  • Expansion Unit DX1215II
  • 1 x User's Guide
  • 1 x Accessory Pack
  • 1 x AC Power Cord
  • 1 x Expansion Cable: Infiniband
Compatibility Synology DiskStation Storage Systems:
  • DS3615xs
  • DS3612xs
  • DS3611xs
  • DS2015xs
  • DS2413+
Environmentally Friendly Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty 5 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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