Expansion Unit DX1222

Easily double or triple the storage capacity of your Synology DiskStation.

DX1222
DX1222

Add 12 bays to your DiskStation on the fly

Use Synology Expansion Unit DX1222 to add 12 additional bays to your deployment while keeping your storage and services online and uninterrupted.

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Fast setup

Your additional storage will be ready to use in a matter of moments after you connect it to your host NAS.1 Online volume expansion enables you add a new volume or expand RAID volumes without reformatting drives through DiskStation Manager (DSM).

Fast setup

Optimize with Synology drives

Ensure high reliability and performance on your expansion unit with Synology drives that are designed to be a perfect fit.

Centrally manage all your drives

Benefit from unified drive management after connecting the DX1222 to your primary NAS. Maintenance, monitoring, and administration of drives on both units is simple with Synology DSM.

Centrally manage all your drives
5-year warranty

5-year warranty

At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty,2 providing responsive technical support and hardware replacement services to maximize your return on investment. Learn more. Learn more

Synology Replacement Service (SRS)

Synology Replacement Service (SRS)

SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity. Learn more

Notes:

  1. See the specifications for a list of supported models. DSM 6.2.4-25556 or a newer version must be installed on the host device.

  2. The warranty period starts from the date of purchase as stated on your purchase receipt. Read more here.

Hardware Specifications

Applied Models

Applied Models

Supports creating volumes across different units
  • 22 series:DS3622xs+, DS2422+
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.

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 550 W
AC Input Power Voltage 100 V to 240 V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 57.71 W (Access)
16.25 W (HDD Hibernation)
British Thermal Unit 194.96 BTU/hr (Access)
55.48 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 0°C to 40°C (32°F to 104°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* 24.6 dB(A)
Notes Noise Level Testing Environment: Fully loaded with Seagate ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology expansion unit 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

  • UL
  • FCC
  • CE
  • BSMI
  • UKCA
  • EAC
  • VCCI
  • 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
  • Accessory Pack X 1
  • AC Power Cord X 1
  • Expansion Cable: MiniSAS-HD X 1
  • Quick Installation Guide X 1

Optional Accessories

Optional Accessories

Notes:

  1. Model specifications are subject to change without prior notice.
  2. 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.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.