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Rectangular black desktop chassis with twelve front drive bays and rear expansion port

Synology Inc.

Synology Inc. DX1222 12-Bay Desktop NAS Expansion Unit

SKU CH-Q9ZR-BRBTA MPN DX1222

Adds up to 12 SATA drives to a compatible Synology DiskStation for 192 TB of extra capacity

  • TypeDesktop NAS
  • Ports1 x 1GbE / 1 x Expansion Port
  • Port Others1 x Expansion port (Mini-SAS HD)
  • HDD Interface12 x SATA (12 x Bay)
  • Form Factor12-Bay
  • Included HDD CapacityDiskless System

Form Factor 12-Bay

Option DX1222

  • Expands a Synology DiskStation with up to 12 additional drive bays
  • Supports 3.5", 2.5" SATA HDDs and 2.5" SATA SSDs for flexible storage
  • Scales total raw capacity to 192TB using compatible 16TB drives
  • Connects via Mini-SAS HD expansion port for high-bandwidth link
  • Low 16.25W power draw during HDD hibernation reduces running costs

12-Bay Desktop NAS Expansion Unit

The Synology DX1222 adds twelve SATA drive bays to a compatible DiskStation, letting administrators scale raw capacity without replacing the primary system. It is built for environments that need on-the-fly volume growth while keeping the existing DSM management layer.

Expansion cable and accessory pack

The bundled Mini-SAS HD cable links the DX1222 directly to the host DiskStation expansion port, so the extra bays appear instantly in DSM. The accessory pack supplies drive trays and screws, meaning no separate cabling or mounting hardware is required to populate all twelve slots.

1 GbE and Mini-SAS HD interface limits

A single 1 GbE port handles management traffic only; all storage throughput runs over the Mini-SAS HD link, so total bandwidth depends on the host DiskStation’s expansion controller rather than the unit itself. The twelve SATA lanes share that upstream connection, which can become a bottleneck under heavy multi-drive workloads.

Ciri-ciri utama

  • Expands a Synology DiskStation with up to 12 additional drive bays
  • Supports 3.5", 2.5" SATA HDDs and 2.5" SATA SSDs for flexible storage
  • Scales total raw capacity to 192TB using compatible 16TB drives
  • Connects via Mini-SAS HD expansion port for high-bandwidth link
  • Low 16.25W power draw during HDD hibernation reduces running costs

Spesifikasi

BrandSynology
SeriesDiskExpansion
ModelDX1222
TypeDesktop NAS
Ports1 x 1GbE / 1 x Expansion Port
Port Others1 x Expansion port (Mini-SAS HD)
HDD Interface12 x SATA (12 x Bay)
Form Factor12-Bay
Included HDD CapacityDiskless System
Max Capacity192TB
Drive Compatibility3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Power100-240 VAC 50/60Hz
Power Consumption57.71 W (Access)
16.25 W (HDD Hibernation)
Temperature0°C - 40 °C
Humidity5-95% R.H (Relative)
FeaturesSynology DX1222 expansion units let you add capacity to your Synology DiskStation on the fly. Instantly leverage up to 12 additional 2.5 or 3.5 inch drives in the same deployment thanks to a small footprint, quick installation, and Synology DiskStation Manager's (DSM) intuitive volume management options.
Dimensions10.63" x 11.81" x 13.39"
Weight19.89 lbs.
Package Contents1 x DX1222 main unit
1 x AC power cord
1 x Accessory pack
1 x Expansion cable
1 x Quick Installation Guid
Berat penghantaran12.32 kg
Dimensi bungkusan467 × 442 × 434 mm

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How many drives can be added later and what sizes does the DX1222 accept?

The unit has 12 bays that take 3.5 inch SATA HDDs, 2.5 inch SATA HDDs or 2.5 inch SATA SSDs, letting you expand capacity up to 192TB.

What limits total throughput when the DX1222 is under sustained load?

The single Mini-SAS HD expansion port links the unit to the host DiskStation, so the host's expansion bandwidth and the 12 SATA lanes set the practical ceiling.

How much power does the DX1222 draw and how much heat does it add when running all day?

It draws 57.71 W during access and 16.25 W with drives hibernating, operating within a 0°C to 40°C ambient range.

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