Expansion Unit RX1222sas
Compatibility Downloads
Compatibility Downloads
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Expansion Unit RX1222sas

Plug-and-play capacity expansion for Synology servers

Accommodate massive storage growth

Expand your Synology rackmount SAS storage 12 bays at a time, for up to 84 additional 3.5"/2.5" SAS/SATA drives with a maximum of seven Synology RX1222sas expansion units. Add volumes when and where needed without interrupting services, thanks to Synology DiskStation Manager (DSM)’s online volume expansion and powerful volume management options.

Download Datasheet

Easy setup and management

Connect the RX1222sas through the included expansion cable and start managing the additional storage in minutes with Storage Manager and other intuitive tools in Synology DSM. Online volume expansion enables you to add a new volume or expand RAID volumes without reformatting drives.

Easy setup and management

Fast and stable with Synology drives

Achieve higher levels of reliability with Synology’s SAS and SATA enterprise drives. Backed by hundreds of thousands of hours of rigorous testing, they ensure maximum integration and optimal performance when paired with your Synology deployment.

Enterprise Series 3.5" SASEnterprise Series 3.5" SATA
Enterprise Series 2.5" SATA
img enterprise-hatimg enterprise-sat

Built with service uptime in mind

RX1222sas’s hot-swappable drive trays, fans, and power supplies reduce the impact of maintenance on service availability, while the redundant power supply units keep your system online even in case one power source fails.

Built with service uptime in mind
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, providing responsive technical support and hardware replacement services to maximize your return on investment. Learn more

Notes:

  1. Expanding storage on SA3600/SA3400 units requires DSM 6.2.4-25556 Update 2 or newer to be installed on the host device. For complete information on compatible models, please visit www.synology.com.

  2. The warranty period starts from the date of purchase as stated on your purchase receipt. Visit https://www.synology.com/company/legal/warranty for more information.

Hardware Specifications
Applied Models
Applied Models
 Supports creating volumes across different units
  • FS series:FS6400, FS3600, FS3400
  • SA series:SA3610, SA3600, SA3410, SA3400
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: 6.2.4-25556 Update 3, 7.0.1-42218 Update 2 or later versions. (Learn more)
Storage
Storage
 Drive Bays 12
Compatible Drive Type* (See all supported drives)
  • 3.5" SAS HDD
  • 2.5" SAS SSD
  • 3.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
RAID Management through Synology DSM
Notes
  • Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
External Ports
 SAS IN-port 1
SAS OUT-port 1
Appearance
Appearance
 Size (Height x Width x Depth) 88 mm x 430.5 mm x 692 mm
Size (Height x Width x Depth) (with server ears) 88 mm x 482 mm x 724 mm
Weight 13.5 kg
Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKS-02)
Notes The rail kit is sold separately
Power
Power
 Power Supply Unit / Adapter 500 W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 194.4 W (Access)
82.56 W (HDD Hibernation)
British Thermal Unit 663.48 BTU/hr (Access)
281.77 BTU/hr (HDD Hibernation)
Redundant Power Supply
Notes Power consumption is measured when it is fully loaded with Synology HAS5300-8T hard drive(s).
Temperature
Temperature
 Operating Temperature 0°C to 35°C (32°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 80 mm x 80 mm x 4 pcs
Easy Replacement System Fan
Noise Level* 54.5 dB(A)
Notes Noise Level Testing Environment: Fully loaded with Synology SAT5200-480G SSD 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
  • 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 2
  • Expansion Cable: Mini-SAS HD X 2
  • 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.