Expansion Unit RX6025sas
High-density storage expansion for Synology HD6500 servers
Overview:
High-Density Capacity Expansion for Synology HD6500 Servers
The 4U RX6025sas enables seamless storage expansion for Synology’s largest server unit, the 60-bay HD6500. Achieve even more storage availability with up to 60 additional drive bays through quick installation and intuitive setup in Synology DiskStation Manager (DSM)
- On-The-Fly Instllation
Add up to 60 additional 3.5" Synology SAS HDDs or 2.5" Synology SATA SSDs with minimal setup and disruption - Simple Configuration
Leverage new storage in minutes using Synology DSM’s unified tools - Service Availability Safeguards
Redundant components and support for SAS multipathing keeps downtime at bay - Designed for Synology Drives
Synology drives are rigorously stress-tested for the upmost reliability and compatibility - Long-Term Support
Backed by Synology’s 5-year limited warranty
Features:

Massive storage expansion
Accomodate growing storage demands by adding 60 additional drives to your HD6500 in minutes. Support for up to four expansion units enables seamless storage growth without costly disruptions.
Designed for service uptime
Tackle large-scale applications while maintaining the highest level of service availability thanks to clever hardware solutions.
SAS multipathing
SAS multipathing maximizes resiliency against hardware malfunctions by providing alternate physical paths, allowing the system to reroute data when the primary interface or connection fails.

Redundant components
Modular drive trays and system fans reduce the impact of maintenance on service availability, allowing for easy and quick replacement. Redundant power supply units provide continuous data availability even during power source failures.


Plug-and-play deployment
Minimize downtime when expanding your storage infrastructure with online storage expansion, which allows you to add new volumes or expand RAID volumes on the RX6025sas without affecting services on the HD6500.
Technical Specifications:
Hardware Specifications: | |
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Applied Models | HD6500 |
Storage | |
Drive Bay(s) | 60 |
Compatible Drive Type |
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Hot Swappable Drive | |
External Ports | |
Expansion Port | 2 |
Appearance | |
Size (Height X Width X Depth) | 176 mm x 438 mm x 985 mm |
Size (Height X Width X Depth) (with server ears) | 176 mm x 482 mm x 1020 mm |
Weight | 33.9 kg |
Rack Installation Support | 4-post 19" rack (Synology Rail Kit - RKS-03) |
Power | |
Power Recovery | Synchronized with the Synology DiskStation |
Power Supply Unit / Adapter | 1300W |
AC Input Power Voltage | 200V to 240V AC |
Power Frequency | 50/60 Hz, Single Phase |
Power Consumption* |
811.8 W (Access) 231 W (HDD Hibernation) |
British Thermal Unit |
2768.24 BTU/hr (Access) 787.71 BTU/hr (HDD Hibernation) |
Redundant Power Supply | |
Note | Power consumption is measured when it is fully loaded with Synology HAS5300-8T hard drive(s). |
Temperature | |
Operating Temperature | 5°C to 40°C (40°F to 104°F) |
Storage Temperature | -10°C to 70°C (-15°F to 155°F) |
Relative Humidity | 5% to 95% RH |
Others | |
System Fan | 80 mm x 80 mm x 4 pcs |
Easy Replacement System Fan | |
Noise Level | 61.7 dB(A) |
Note | Noise Level Testing Environment: Fully loaded with Synology HAS5300-8T hard drive(s) 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 |
|
Warranty | 5 Years |
Environment & Packaging | |
Environment | RoHS Compliant |
Packaging Content |
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Optional Accessories |
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*Model specifications are subject to change without notice. Please refer to www.synology.com for the latest information.
Documentation:
Download the Synology Expansion Unit RX6025sas Datasheet (PDF).

Synology has you covered
The RX6025sas is backed by Synology's 5-year limited warranty, including technical support and hardware replacement services to maximize your return on investment and ensure continued high-quality performance.
- All Prices are Inclusive of GST
- Pricing and product availability subject to change without notice.