Components & Storage
Software & Services
Synology 12 Bay Desktop NAS Expansion Unit DX1215II (Diskless)
$1,372.11
Expansion Unit DX1215II
Easily add 12 bays to your DiskStation
The Synology DX1215II is designed for effortless storage expansion for compatible Synology DiskStation* without the need to reformat drives. Plug-n-Play design streamlines setup. And the compact 12-bay desktop form factor minimizes 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.
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.
* View specifications for a list of supported models. Requires DSM 6.2.4-25556 or newer to be installed on the host device.
| Best Seller Ranking |
#79 in Desktop NAS |
|---|---|
| Brand |
Synology |
| Model |
DX1215II |
| Type |
Desktop NAS |
| HDD Interface |
192 TB (16 TB drive x 12) (Capacity may vary by RAID types) |
| Form Factor |
12-Bay |
| Included HDD Capacity |
Diskless System |
| Max Capacity |
192TB |
| Drive Compatibility |
3.5" SATA HDD2.5" SATA HDD2.5" SATA SSD |
| Power |
Power Supply Unit ,Adapter: 550WAC Input Power Voltage: 100V to 240V ACPower Frequency: 50/60 Hz ,Single PhasePower Consumption: 51.23W (Access) ,21.71W (HDD Hibernation) |
| Power Consumption |
51.23 W (Access)21.71 W (HDD Hibernation) |
| Temperature |
5°C – 35 °C |
| Humidity |
5-95% R.H |
| Features |
192 TB (16 TB drive x 12) (Capacity may vary by RAID types) |
| Usage |
Backup & stream media through personal cloud |
| Dimensions |
10.63" x 11.81" x 13.39" |
| Weight |
19.89 lbs. |
| First Listed on Newegg |
June 16 ,2021 |
43 reviews for Synology 12 Bay Desktop NAS Expansion Unit DX1215II (Diskless)
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Thomas D. –
Pros: Effortless Cons: Seemingly expensive Overall Review: I went from 8 to 13 bays. Power off, plug the eSATA, included, plug in the power cord, which for me is the same UPS, power up your DS1817+, TURN ON THE EXPANSION UNIT, all done, forever. If you need the bays, absolutely worth it.
Joseph K. –
Pros: Was very easy and seamless to expand my 718+ Disk Station Overall Review: Would definitely recommend for those wanting to expand their NAS.
David R. –
Overall Review: Plug in drives, plug eSTATA cable, and away you go!
Robert H. –
Pros: Very simple setup. No tools needed to put in drives. Just pop them into sleds. Connect the Esata cable & power and your NAS will pick it up right away. Cons: Only has 5 bays :p Overall Review: The drives in the expansion unit seem just as responsive as the drives in my DS718+. Would recommened.
Anonymous –
Overall Review: I should have realized that because it is connected to the NAS bt eSATA that it would most likely not as fast as the NAS. I have my NAS connected to a 10gb port and the NAs also has a 10gb port. I can get between 750 MB/s to 1GB/s transfer rate. To this expansion unit I get about 250 MB/s. I am not saying that is a bad thing, just making sure that you are aware.
CLOVIS DBA –
Pros: System Overview:
I) DS920+ NAS with (4) 6TB Ironwolf) Running SHR
II) 2 Samsung 970 EVO 250GB-SSD (Cache/RAID 1 Data Protection)
III) DX517 with (2) 6TB Ironwolf)
Running Synopsis Hybrid Raid (SHR)
Extremely easy setup
Expandable (5 drive slots available)
Quiet operation
Cool temps
Marries up with my DS920+ with literally plug/play operation.
Basically anyone can setup a RAID setup, with minimal effort and previous experience. Cons: None to date Overall Review: Great add-on to supersize my NAS system (Plex Server).
Ergonomically matches host unit.
All cabling included.
Love how operation is controlled via the web interface.
Note: I recommend you only power DX517 unit up/down via host unit. Do not power down manually via on/off button, use the desktop interface. The host NAS will control power to the DX517 as far as when to power up/down.
Anonymous –
Pros: Easy to set up and configure
Just make sure eSATA connections are snug
I like the individual drive lights on each drive Cons: I have not found any cons other than the need to firmly seat the eSATA connections. I actually wasted a little time wondering why the expansion unit was not recognized by me DS920+, but it was just the cable. I did not mind this too much, since now I know this critical connection is very secure. Overall Review: Recommended for this wanting to expand Synology NAS capacity.
Tim B. –
Overall Review: Works great. Was new and in perfect condition. I shop Newegg for all tech now. They are cheaper, and super fast. Id also prefer to not give my money to Bezos.