Synology Expansion Unit DX525 - 5-Drive Bays - Supports Both 2.5" and 3.5" SATA drives
Seamless capacity expansion for Synology DiskStation
Storage expansion without downtime
Easily add five additional drive bays to your Synology DiskStation.The DX525 supports both 2.5" and 3.5" SATA drives and features plug-and-play setup and hot-swap capability for uninterrupted operation during capacity expansion.
Dedicated local backup solution
The Synology DX525 provides a dedicated local backup solution for your Synology DiskStation. When configured as a separate volume, it safeguards data on its local disks in case of system failure.
Online volume expansion
Managed through the host NAS's DiskStation Manager (DSM), the DX525's additional bays are immediately available upon connection. On-the-fly volume expansion ensures uninterrupted service and storage expansion on the host.
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Specifications
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Applied Models
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Supports creating volumes across different units |
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| Notes | 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. | |
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Storage
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Drive Bays | 5 |
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| Hot Swappable Drive* | ||
| RAID Management through Synology DSM | ||
| Notes | Compatible drives are mandatory. | |
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External Ports
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Expansion Port | 1 |
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Appearance
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Size (Height x Width x Depth) | 166 mm x 230 mm x 223 mm |
| Weight | 2.46 kg | |
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Power
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Power Recovery | Synchronized with the Synology DiskStation |
| Power Supply Unit / Adapter | 90 W | |
| AC Input Power Voltage | 100V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 35.37 W (Access) 7.0 W (HDD Hibernation) |
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| British Thermal Unit | 120.69 BTU/hr (Access) 24.02 BTU/hr (HDD Hibernation) |
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Temperature
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Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
| Relative Humidity | 5% to 95% RH | |
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Others
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System Fan | 92 mm x 92 mm x 2 pcs |
| Noise Level* | 20.4 dB(A) | |
| Notes | Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two G.R.A.S. Type 40AE microphones are placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% | |
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Certification
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Warranty
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3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus | |
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Environment & Packaging
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Environment
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RoHS Compliant | |
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Packaging Content
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Optional Accessories
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We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be ship to international destinations.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
