Synology

Synology RX1217RP 12-Bay RackStation Expansion Unit

3.1 (7 reviews)

Expand your Synology RackStation with 12 additional drive bays and redundant power supplies for uninterrupted storage growth.

$2,399.99*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Synology RX1217RP is a 12-bay rack-mountable expansion unit engineered for businesses and professionals who need to scale their Synology RackStation storage without replacing existing infrastructure. With its plug-and-use design, the RX1217RP connects directly to a compatible 2U RackStation NAS, instantly making 12 additional drive bays available for volume expansion. This is particularly valuable in environments where data growth is ongoing and predictable, such as media production, surveillance archiving, or enterprise file storage.

A standout feature of the RX1217RP is its redundant power supply configuration, which ensures that a single PSU failure does not bring the expansion unit offline. Combined with support for online volume expansion through Synology DiskStation Manager, administrators can add or replace drives and grow storage pools without scheduling downtime. The unit is managed entirely through the same DSM interface used for the host NAS, eliminating the need for separate tools or additional training. For organizations already invested in the Synology ecosystem, the RX1217RP provides a reliable and operationally simple path to scaling capacity within an existing rack environment.

Key Features

Plug-n-use design for seamless storage space upgrade

Online volume expansion on the fly

Redundant power supplies ensure service uptime

Managed from Synology DiskStation Manager (DSM)

Specifications

Drive Bays
12
Compatibility
Synology 2U RackStation NAS
Power Supply
Redundant Power Supplies
Management
Synology DiskStation Manager (DSM)
Volume Expansion
Online (on the fly)
Form Factor
Rack-Mountable

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Pros & Cons

👍 Pros

  • Plug-and-use design requires no complex setup to begin expanding storage
  • Redundant power supplies protect against single power supply failure
  • Online volume expansion allows adding capacity without taking the system offline
  • All 12 bays are managed through the existing DSM interface on the host NAS
  • Rack-mountable form factor integrates cleanly into existing server infrastructure

👎 Cons

  • Only compatible with Synology 2U RackStation models, limiting use with other NAS lines
  • Drives are not included, adding significant cost to reach full 12-bay capacity
  • Requires a physical connection cable to the host NAS, which may limit rack placement flexibility
  • The unit itself has no standalone functionality and is entirely dependent on the host RackStation

Frequently Asked Questions

The RX1217RP is designed to work with Synology 2U RackStation NAS units. Check Synology's compatibility list to confirm your specific model is supported before purchasing.
Yes, the RX1217RP supports online volume expansion, allowing you to add drives and expand storage capacity on the fly without downtime.
The unit includes redundant power supplies, so if one fails the other continues operating, keeping your expansion unit and its drives accessible while you replace the faulty supply.
No, the expansion unit is managed directly through Synology DiskStation Manager (DSM) on your connected RackStation, so there is no additional software to install or configure.
The number of supported expansion units depends on your specific RackStation model. Consult your NAS documentation for the maximum number of expansion units allowed.