Synology RX1225RP 12-Bay Rackmount Expansion Unit

Instantly Expand Your RackStation—12-Bay Redundant Storage

Add seamless, high-availability capacity to your RackStation without downtime. Designed for easy deployment, modular maintenance, and continuous reliability.

Highlights

• Seamlessly adds 12 extra bays to compatible RackStation models

• Plug-and-play expansion—no system or service downtime

• Modular hot-swappable drive trays and system fans for simple maintenance

• Redundant power supply units ensure maximum uptime

• Managed through Synology’s intuitive Storage Manager

• Designed for Synology Enterprise Series drives for best reliability

• 5-year limited warranty with technical support and hardware replacement

Key Features

Expansion & Compatibility

• Bays: 12 (supports both 3.5" SATA HDD and 2.5" SATA SSD)

• Compatible Models: Supports creating volumes across units with RS2825RP+

• Volume Management: Recommended to keep volumes physically within the same NAS or expansion unit for best performance

Reliability & Maintenance

• Hot Swappable Drives: Yes, for non-stop operation

• Modular Fans: Easy replacement for fast servicing

• Redundant Power: Dual power supply units to prevent downtime

Deployment & Management

• Plug-and-Play: Immediate expansion with included MiniSAS-HD cable

• Centralized Management: Expand and manage via Synology DSM Storage Manager

• RoHS Compliant: Designed with environmental standards in mind

Accessories & Options

• Included: Main unit, accessory pack, 2 × AC power cords, MiniSAS-HD expansion cable

• Optional:

  • Synology HAT5300 Enterprise 3.5" SATA HDD

  • Synology HAT3300 Plus 3.5" SATA HDD

  • Synology SAT5200 Enterprise 2.5" SATA SSD

  • Rail Kit Sliding (RKS-02)

Drives & Performance

• Optimized for Synology HDD/SSD: Enterprise and Plus Series for reliability, consistency, and simplified management

• RAID Management: Full support via Synology DSM for flexible storage configurations

Warranty & Support

• 5-year limited warranty, including tech support and hardware replacement

Summary

The Synology RX1225RP expansion unit brings instant, high-reliability 12-bay storage to RackStation setups. Enjoy seamless plug-and-play deployment, easy modular maintenance, and maximum uptime with redundant power—all managed from Synology’s intuitive DSM. Backed by a 5-year warranty, RX1225RP keeps your growing data infrastructure resilient and future-ready.