Synology Network Attached Storage DS925+ 4bay NAS DiskStation Retail
DiskStation DS925+
Flexible storage for everything from home office to edge
Consolidate and store your growing digital data
4-bay with expansion
Up to 180 TB of raw storage with expansion unit
High-speed storage
Two built-in 2.5GbE ports and over 522/565 MB/s sequential read/write
Versatile applications
Back up multiple endpoints, manage 40 IP cameras, or safely sync and share files across sites
2.5GbE connectivity and diverse storage options
The DS925+ features built-in 2.5GbE networking and supports both SATA flash drives and HDDs in 2.5"/3.5" internal bays, as well as M.2 NVMe drives via M.2 slots for use as either cache or storage pools.
Hardware Specifications
CPU
CPU Model
AMD Ryzen V1500B
CPU Quantity
1
CPU Core
4
CPU Architecture
64-bit
CPU Frequency
2.2 GHz
Hardware Encryption Engine
Yes
Memory
System Memory
4 GB DDR4 ECC SODIMM
Memory Module Pre-installed
4 GB (4 GB x 1)
Total Memory Slots
2
Maximum Memory Capacity
32 GB (16 GB x 2)
Notes
Synology reserves the right to replace memory modules with the same or higher frequency based on suppliers product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
Storage
Drive Bays
4
Maximum Drive Bays with Expansion Unit
9 (DX525 x 1)
M.2 Drive Slots
2 (NVMe)
Drive Type
3.5" SATA HDD
2.5" SATA SSD
M.2 2280 NVMe SSD
Hot Swappable Drive
Yes
Notes
The hot swappable drive feature is not supported by M.2 SSD slots.
Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article.
External Ports
RJ-45 2.5GbE LAN Port
2
USB 3.2 Gen 1 Port
2
Expansion Port
1
Expansion Port Type
USB Type-C
Others
System Fan
92 mm x 92 mm x 2 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Brightness Adjustable Front LED Indicators
Yes
Power Recovery
Yes
Noise Level
20.5 dB(A)
Scheduled Power On / Off
Yes
Wake on LAN / WAN
Yes
Power Supply Unit / Adapter
100 watts
120 watts
AC Input Power Voltage
100V to 240V AC
Power Frequency
50/60 Hz, Single Phase
Power Consumption
37.91 watts (Access)
12.33 watts (HDD Hibernation)
British Thermal Unit
129.27 BTU/hr (Access)
42.05 BTU/hr (HDD Hibernation)
Notes
For more information on how power consumption is measured, refer to this article.
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: 24.25-25.75oC Humidity: 58.2-61.8%
Temperature
Operating Temperature
0oC to 40oC (32oF to 104oF)
Storage Temperature
-20oC to 60oC (-5oF to 140oF)
Operating Humidity
8% to 80% RH
Storage Humidity
5% to 95% RH
Certification
FCC
CE
BSMI
VCCI
RCM
UKCA
EAC
CCC
KC
BIS
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Adapter X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Optional Accessories
DDR4 ECC SODIMM: D4ES04-4G/D4ES03-8G/D4ES03-16G
Expansion Units: DX525
Enterprise Series 3.5" SATA HDD: HAT5300 Series
Plus Series 3.5" SATA HDD: HAT3300 Series
Enterprise Series 2.5" SATA SSD: SAT5200 Series
Enterprise Series M.2 2280 NVMe SSD: SNV3400 and SNV5400 Series
Notes
For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
Item Dimension (L"xW"xH")
12 x 10 x 11
Weight
10 lbs
Warranty Information
3 years
DiskStation DS925+
Flexible storage for everything from home office to edge
Consolidate and store your growing digital data
4-bay with expansion
Up to 180 TB of raw storage with expansion unit
High-speed storage
Two built-in 2.5GbE ports and over 522/565 MB/s sequential read/write
Versatile applications
Back up multiple endpoints, manage 40 IP cameras, or safely sync and share files across sites
2.5GbE connectivity and diverse storage options
The DS925+ features built-in 2.5GbE networking and supports both SATA flash drives and HDDs in 2.5"/3.5" internal bays, as well as M.2 NVMe drives via M.2 slots for use as either cache or storage pools.
Hardware Specifications
CPU
CPU Model
AMD Ryzen V1500B
CPU Quantity
1
CPU Core
4
CPU Architecture
64-bit
CPU Frequency
2.2 GHz
Hardware Encryption Engine
Yes
Memory
System Memory
4 GB DDR4 ECC SODIMM
Memory Module Pre-installed
4 GB (4 GB x 1)
Total Memory Slots
2
Maximum Memory Capacity
32 GB (16 GB x 2)
Notes
Synology reserves the right to replace memory modules with the same or higher frequency based on suppliers product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
Storage
Drive Bays
4
Maximum Drive Bays with Expansion Unit
9 (DX525 x 1)
M.2 Drive Slots
2 (NVMe)
Drive Type
3.5" SATA HDD
2.5" SATA SSD
M.2 2280 NVMe SSD
Hot Swappable Drive
Yes
Notes
The hot swappable drive feature is not supported by M.2 SSD slots.
Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article.
External Ports
RJ-45 2.5GbE LAN Port
2
USB 3.2 Gen 1 Port
2
Expansion Port
1
Expansion Port Type
USB Type-C
Others
System Fan
92 mm x 92 mm x 2 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Brightness Adjustable Front LED Indicators
Yes
Power Recovery
Yes
Noise Level
20.5 dB(A)
Scheduled Power On / Off
Yes
Wake on LAN / WAN
Yes
Power Supply Unit / Adapter
100 watts
120 watts
AC Input Power Voltage
100V to 240V AC
Power Frequency
50/60 Hz, Single Phase
Power Consumption
37.91 watts (Access)
12.33 watts (HDD Hibernation)
British Thermal Unit
129.27 BTU/hr (Access)
42.05 BTU/hr (HDD Hibernation)
Notes
For more information on how power consumption is measured, refer to this article.
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: 24.25-25.75oC Humidity: 58.2-61.8%
Temperature
Operating Temperature
0oC to 40oC (32oF to 104oF)
Storage Temperature
-20oC to 60oC (-5oF to 140oF)
Operating Humidity
8% to 80% RH
Storage Humidity
5% to 95% RH
Certification
FCC
CE
BSMI
VCCI
RCM
UKCA
EAC
CCC
KC
BIS
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Adapter X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Optional Accessories
DDR4 ECC SODIMM: D4ES04-4G/D4ES03-8G/D4ES03-16G
Expansion Units: DX525
Enterprise Series 3.5" SATA HDD: HAT5300 Series
Plus Series 3.5" SATA HDD: HAT3300 Series
Enterprise Series 2.5" SATA SSD: SAT5200 Series
Enterprise Series M.2 2280 NVMe SSD: SNV3400 and SNV5400 Series
Notes
For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
Item Dimension (L"xW"xH")
12 x 10 x 11
Weight
10 lbs
Warranty Information
3 years