Expansion Unit DX1215
12-Bay Expansion Unit scales up your Synology DiskStation capacity effortlessly

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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.


Hardware Specifications Applied Models Supports creating volumes across different units FS series:FS1018 19 series:DS2419+ 18 series:DS3018xs 17 series:DS3617xs 15 series:DS3615xs, DS2415+, DS2015xs 13 series:DS2413+ 12 series:DS3612xs 11 series:DS3611xs, DS2411+   Notes 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 Storage Drive Bays 12   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   External Ports Expansion Port 1 Appearance Size (Height x Width x Depth) 270 mm x 300 mm x 340 mm   Weight 9.02 kg Power Power Recovery Synchronized with the Synology DiskStation   Power Supply Unit / Adapter 500 W   AC Input Power Voltage 100 V to 240 V AC   Power Frequency 50/60 Hz, Single Phase   Power Consumption* 51.23 W (Access)
21.71 W (HDD Hibernation)   British Thermal Unit 174.80 BTU/hr (Access)
74.08 BTU/hr (HDD Hibernation)   Notes Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Temperature Operating Temperature 5°C to 35°C (40°F to 95°F)   Storage Temperature -20°C to 60°C (-5°F to 140°F)   Relative Humidity 5% to 95% RH Others System Fan 120 mm x 120 mm x 2 pcs   Easy Replacement System Fan     Noise Level* 27.2 dB(A)   Notes 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% Certification FCC CE BSMI EAC KC Warranty 5 Years   Notes The warranty period starts from the purchase date as stated on your purchase receipt.  Environment & Packaging Environment RoHS Compliant Packaging Content Main Unit X 1 User's Guide X 1 Accessory Pack X 1 AC Power Cord X 1 Expansion Cable: Infiniband X 1 Optional Accessories 2.5" SATA SSD: SAT5200
Notes: 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.