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Synology DX213 Diskless System Expansion Unit for Increasing Capacity of the Synology DiskStation

  • Online Volume Expansion
  • Dedicated Local Backup Solution
  • Reliable Plug-n-use Design
  • Auto power on/off with DiskStation Models

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

DiskStation DX213

Synology® DX213 delivers an effortless solution for volume expansion and data backup for selected Synology DiskStation models. The DX213 seamlessly scales up the storage capacity of the DiskStation by additional 2 hard drives on-the-fly when connected directly to an expansion cable.

Volume Expansion & Backup

When running out of hard drive capacity on the Synology DiskStation, Synology DX213 provides an easy way to immediately scale capacity by additional 2 hard drives. The RAID volume on the Synology DiskStation can be expanded directly without having to reformat the existing hard drives, ensuring the Synology DiskStation continues its service during the capacity expansion.

Learn more about the Synology Inc. DX213




HDD Interface
3.5" or 2.5" SATA(II) X 2 (hard drives not included)


Form Factor

Hard Drive Performance

Included HDD Capacity
Diskless System


100-240 VAC 50/60Hz
Power Consumption: 21W (Access), 6W (HDD Hibernation)


Operating Temperature: 5 to 35 degree
Storage Temperature: -10 to 70 degree
5-95% R.H


Online Volume Expansion

Dedicated Local Backup Solution

Reliable Plug-n-use Design

Auto power on/off with DiskStation Models

Dimensions & Weight

8.88" x 6.5" x 3.94"
1.92 lbs.

Package Contents

Package Contents
DX213 Main Unit
User's Guide
Assembling Kit
AC Power Cord
AC Power Adapter
Expansion Cable
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the Synology Inc. DX213

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  • scott a.
  • 3/14/2013 1:20:42 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year

5 out of 5 eggsWorks well

Pros: They don't list specs as this is an expansion bay, not the NAS it's self. You fail, not Synology.

Anyway, works as described.

Cons: none. works like its suppose to.

6 out of 6 people found this review helpful. Did you? Yes No

  • Joe E.
  • 3/12/2013 6:28:26 PM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsIt's and EXPANSION unit, not a Server

Pros: Does just what it says., Its an expansion unit for a Synology server. You can add two drives to your existing Synology Raid OR use it as a back up for your Synology Raid.

Cons: None

Other Thoughts: Don't post comments about products unless you have owned them. We can't help you can't read.

6 out of 6 people found this review helpful. Did you? Yes No

  • Chris R.
  • 3/9/2013 10:40:48 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day

1 out of 5 eggsNo Specs

Pros: -None

Cons: - They dont list the CPU and RAM specs, so clearly this is a heap of junk if they are afraid to list them.

Manufacturer Response:

The DX213 is an expansion unit that attaches directly to models DS1812+, DS1512+ and DS713+. As an expansion unit it does not have CPU or RAM, it is an attachment to the main unit listed above. We apologize for any confusion you may have had in purchasing this model. Please refer to the DX213 product page for details and specs.

If you are looking for a 2 bay DiskStation we refer you to look at models DS213, DS213+, DS213air and DS212j. View our product line for full specs here:

0 out of 28 people found this review helpful. Did you? Yes No

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