12-Bay, For compatible DiskStation models
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Hard Drives Tested
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6Gb/s SATA to Gigabit Ethernet (1,000 Mbit/s)
Expansion Unit DX1215
12-Bay Expansion Unit scales up your Synology DiskStation capacity effortlessly
Plug-and-Use design for seamless storage space upgrade
Online volume expansion
SATA III 6Gb/s interface support
Perfect for local backup solution
Energy-saving hibernation mode
Managed from Synology DiskStation Manager (DSM)
Volume Expansion & Backup
When drive capacity is running low on a Synology DiskStation, Synology DX1215 provides an easy way to immediately scale capacity by providing an additional 12 drive slots. A RAID volume on the Synology DiskStation can be expanded directly without having to reformat the existing drives, ensuring the Synology DiskStation continues providing services during capacity expansion.
Synology DX1215 can serve as a dedicated local backup solution for a Synology DiskStation. When created as a separate volume, the Synology DX1215 provides a great backup solution for local drives in case of system failure.
Reliable Plug-and-Use Design
DX1215 securely connects to Synology's DiskStation servers with a specially designed expansion cable, ensuring easy connection and maximum data throughput. The 6Gb/s connection speed allows the drives in the connected Synology DX1215 to operate as the internal ones of Synology DiskStation.
Green & Easy to Manage
Hibernation mode can be manually configured to start automatically when the system has been inactive for a period of time. This not only saves energy but also extends the lifespan of hard drives. DX1215 will also smartly power on/off with the attached DiskStation, so no user intervention is needed to keep this system running smartly and efficiently.
DX1215 comes with a fast detachable fan module with two 120 X 120mm fans and screwless drive trays, making system components replacement fast and tool-free.
Supports creating volumes across different units
15 series:DS3615xs, DS2415+, DS2015xs
11 series:DS3611xs, DS2411+
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.
DSM version requirement: 5.1-5004 or later version
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity
192 TB (16 TB drive x 12) (Capacity may vary by RAID types)
Hot Swappable Drive
RAID Management through Synology DSM
Size (Height x Width x Depth)
270 mm x 300 mm x 340 mm
Synchronized with the Synology DiskStation
Power Supply Unit / Adapter
AC Input Power Voltage
100 V to 240 V AC
50/60 Hz, Single Phase
51.23 W (Access)
21.71 W (HDD Hibernation)
British Thermal Unit
174.80 BTU/hr (Access)
74.08 BTU/hr (HDD Hibernation)
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
5°C to 35°C (40°F to 95°F)
-20°C to 60°C (-5°F to 140°F)
5% to 95% RH
120 mm x 120 mm x 2 pcs
Easy Replacement System Fan
Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
The warranty period starts from the purchase date as stated on your purchase receipt.
Environment & Packaging
Main Unit X 1
User's Guide X 1
Accessory Pack X 1
AC Power Cord X 1
Expansion Cable: Infiniband X 1
2.5" SATA SSD: SAT5200
Model specifications are subject to change without prior notice.
The figures are based on Synology internal testing. No other services or applications are processed during the performance tests.
| Stock code || IBSY-DX1215|
| Brand || Synology|
| Series || NAS Expansion|
| Model || DX1215|
| Type || 12-Bay, For compatible DiskStation models|
| UPC || 846504001859|
| ROHS || Y|
| Date added || 04/11/2014|
DX1215 Spec Information
| Form Factor / Drive Height || 270x300x340mm|
| Platter size || 3.5"|
| Platter (alternate) || 2.5"|
| Guarantee || 5yr|
| Processor || N/A|
| Total Drives || 12|
| RAID || JBOD|
DX1215 Spec Connections
|SATA||SATA 7-pin Discrete with Power||Internal||12|
| Speed/RPM || 6Gb/s SATA to Gigabit Ethernet (1,000 Mbit/s)|
| Weight (kg) || 12kg|
| Weight (bare) || 9.02kg|
| Watts || 51.23W|
| Colour || Black|
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Order before 4pm*, and in-stock products will be with you the next day. (Or Saturday. Or even Same Day).
Wherever you are in the world, we can get your order to you at high speed.
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Our free service helps you choose the right NAS and Drives, then makes sure it is built & ready to use as soon as you get it.
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DISCLAIMER: Product information and images on this page are for guidance only and are liable to change without notice. Some details may refer to the whole category or range, rather than this particular item. Specifications shown are our best interpretation of information supplied by the manufacturer, and are as up-to-date as possible. If you require clarification on any item, please contact us and we will be glad to help you.
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