Synology Expansion Unit RX6025sas 60-Bays – RX6025sas

Brand: Synology

AED 29,320.00 excl. VAT

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AED 29,320.00 excl. VAT

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Estimated delivery between Mar 14, 2026 - Mar 21, 2026

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SKU: RX6025sas Category: Tag: Brand:

Synology Expansion Unit RX6025sas 60-Bays – RX6025sas

 

Expansion Unit Rackmount 60 bays (SAS drive only), please be aware of compatible models (https://www.synology.com/en-global/products/expansion)

Product Image RX6025sas

Expansion Unit RX6025sas

High-density storage expansion for Synology HD6500 servers


 

Overview

 

Features

Image of RX6025sas expansion unit

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. Support for SAS multipathing provides up to double the performance when deploying multiple expansion units, while online storage expansion and the comprehensive management tools in Synology DiskStation Manager (DSM) streamline setup and ongoing management.

 

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.

 

detail_RX6025sas.uptime_tab21_img_desc

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.

 

Image illustrating Storage Manager managing different volumes located on different systems. HD6500 is the main storage device which has one volume on it and RX6025sas is the expansion unit with two separate volumes on it

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.

 

Enterprise Series 3.5" SAS

Achieve peak performance with Synology drives

Synology drives’ finely tuned firmware ensures maximum integration with Synology hardware and software. Backed by a testing regimen that replicates heavy data center use, they deliver optimal performance and reliability even when tackling the most demanding applications.

 

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Detailed Tech Specs

 

Hardware Specs

Applied Models
Supports creating volumes across different units HD6500
Notes
  • DSM version requirement: DSM 7.2.2-72806 Update 2 or later version.
  • 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 60
Drive Type (See all supported drives)
  • 3.5" SAS HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
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.
  • To install 2.5" SATA SSDs, optional 2.5" drive trays (R5) must be purchased separately. Learn more
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
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 RackStation
Power Supply Unit / Adapter 1300 W
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
Notes Power consumption is measured when it is fully loaded with Synology HAS5300-8T hard drive(s).
Temperature
Operating Temperature 0°C to 35°C (32°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Operating humidity 8% to 80% RH
Storage 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)
Notes 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
  • UL
  • FCC
  • CE
  • BSMI
  • UKCA
  • EAC
  • VCCI
  • RCM
  • KC
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
  • Rail kit RKS-03 X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Expansion Cable: Mini-SAS HD X 2
  • Quick Installation Guide X 1
Optional Accessories
Notes To install 2.5" SATA SSDs, optional 2.5" drive trays (R5) must be purchased separately. Learn more
Notes:
  1. Model specifications are subject to change without prior notice.
  2. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.
 
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