Synology DiskStation DX1215 NAS Expansion Unit

Synology Part #/MPN: DX1215

DiscTech Item #: SYN-DX1215-BN-5Y

  • Low Stock:Call for ETA
    Stock Levels

    This item is currently (nearly) out of stock. It may be possible to arrange fast shipment. If you need it urgently call us. Otherwise, it usually ships within 1 week.


Interface Types: SATA, SFF-8470

Electrical Interface: SATA 600 - 6.0Gbps

Bays/Ports/Slots: 12

Wattage/VA: 500W

Voltage: 110-240V Multi

Synology DiskStation DX1215 12-bay SATA NAS Expansion Unit - Brand New

Synology DiskStation DX1215 Expansion Unit includes...

  • 1x Infiniband / SFF-8470 port
  • 12 drive bays
  • accepts 3.5" and 2.5" SATA hard drives and 2.5" SATA solid state drives.

DX1215 12-Bay Expansion Unit scales up your Synology DiskStation capacity effortlessly
Synology DX1215 delivers an effortless volume expansion and data backup solution for selected Synology DiskStation servers by providing an additional 12 drive slots with SATA III 6Gb/s interface support.


  • 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.


Supported Models

  • DS3615xs
  • DS3612xs
  • DS2015xs
  • DS3611xs
  • DS2415+
  • DS2413+

Model NumberDX1215
Supported ModelsDS3615xs
Drive Bay(s)12
Compatible Drive Type3.5in SATA III / SATA II HDD
Maximum Internal Raw Capacity72 TB (6 TB HDD x 12)
(Capacity may vary by RAID types)
Hot Swappable DriveYes
RAID Management through Synology DSMYes
Infiniband port1
Size (Height x Width x Depth)270 mm x 300 mm x 340 mm
Weight9.02 kg/20 lb
Power RecoverySynchronized with the Synology DiskStation
Power Supply Unit / Adapter500W
AV Input Power Voltage100V to 240V AC
Power Frequency50/60 Hz, Single Phase
Power Consumption51.23 W (Access)
21.71 W (HDD Hibernation)
British Thermal Unit174.80 BTU/hr (Access)
74.08 BTU/hr (HDD Hibernation)
Operating Temperature5°C to 35°C
(40°F to 95°F)
Storage Temperature-20°C to 60°C
(-5°F to 140°F)
Relative Humidity5% to 95% RH
System Fan120 mm x 120 mm x 2 pcs
Easy Replacement System FanYes
Noise Level27.2 dB(A)
CertificationFCC Class B
CE Class B
BSMI Class B
EnvironmentRoHS Compliant
Packaging ContentMain Unit (1)
User Guide (1)
Accessory Pack (1)
AC Power Cord (1)
Expansion Cable: Infiniband (1)

Click here to view the manufacturer's item description/brochure

ROHS Compliant

Weight: 20 lb

Warranty: 5 Year Manufacturer

Brand New

Condition Levels Explained

The product is brand new.

5 Year Manufacturer Warranty

Product Warranties Explained

The product has a manufacturer warranty for the time period specified.