Synology DX1222 12-Bay Expansion Unit – 12 x 3.5"/2.5" SATA Drive Bays, 1 x Mini-SAS HD Port, Seamless Storage Expansion for DS3622xs+ & DS2422+, Black
- Free delivery by Monday, Nov 02
- Bank transfer payment
- 1 Year warranty
- Free returns
The Synology DX1222 12-Bay Expansion Unit is designed to seamlessly expand the storage capacity of your compatible Synology NAS, specifically the DS3622xs+ and DS2422+ models. This expansion unit allows you to add 12 additional 3.5" or 2.5" SATA drives, providing a scalable solution for growing data storage needs.
- 12 Drive Bays: Accommodates up to 12 x 3.5" or 2.5" SATA hard drives or solid-state drives, offering flexible storage options.
- Mini-SAS HD Port: Connects to your Synology NAS via a single Mini-SAS HD port, ensuring high-speed data transfer.
- Seamless Storage Expansion: Easily expand your storage capacity without disrupting existing services, thanks to Synology's DSM software.
- Hot-Swappable Drives: Replace or add drives without powering down the system, minimizing downtime.
- Compact Design: The unit's compact form factor ensures it fits into standard server racks, optimizing space utilization.
- Reliable Performance: Built to handle intensive workloads, providing consistent performance for enterprise applications.
- Compatibility: Specifically designed for use with Synology DS3622xs+ and DS2422+ NAS models, ensuring optimal performance and reliability.
Ideal for businesses and enterprises looking to scale their storage solutions efficiently, the Synology DX1222 offers a reliable and cost-effective way to meet increasing data demands. Whether for backup, archiving, or data-intensive applications, this expansion unit provides the flexibility and performance needed to support your growing storage requirements.
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.
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).

Backed by Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.2
HDD
Enterprise Series 3.5" SATAPlus Series 3.5" SATA
SSD
Enterprise Series 2.5" SATA



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.

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.
| Brand | Synology |
|---|---|
| Model | Expansion Unit DX1222 |
| Part number | DX1222 |
| SKU | 3938 |
| Warranty | 1 Year |
| Weight | 9.00 kg |
| Dimensions | 60x50x50 cm |
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
Drive Bays
12
Drive Type (See all supported drives)
3.5" SATA HDD
2.5" 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.
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
550 W
AC Input Power Voltage
100V to 240V 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
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
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
UL
FCC
CE
BSMI
UKCA
EAC
VCCI
RCM
KC
BIS
Warranty
5 Years
Notes
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment & Packaging
Environment
RoHS Compliant
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
Enterprise Series 3.5" SATA HDD: HAT5300 Series
Plus Series 3.5" SATA HDD: HAT3300 Series
Enterprise Series 2.5" SATA SSD: SAT5200 Series
You may also like
More from Network attached storage (NAS)