Expansion Unit DX1215

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

Features
Specs

Highlight

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
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
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
	Notes	It is strongly recommended that you only install drives listed on your device's compatibility list. Storage pool and volume creation processes may fail when using unverified drives. Synology is unable to provide technical support for devices using unsupported components.
External Ports
External Ports	Expansion Port	1
Appearance
Appearance	Size (Height x Width x Depth)	270 mm x 300 mm x 340 mm
	Weight	9.02 kg
Power
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
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
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
Certification	FCC CE BSMI EAC RCM KC
Warranty
Warranty	5 Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment & Packaging
Environment
Environment	RoHS Compliant
Packaging Content
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
Optional Accessories	3.5" SATA HDD: HAT5300 2.5" SATA SSD: SAT5200

Notes:

Model specifications are subject to change without prior notice.
The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
If usage requirements exceed the specifications above, please contact our regional partners for professional advice.