Synology DS925+ SAN/NAS Storage System - DiskStation 1 x AMD Ryzen V1500B Quad core (4 Core) 2.20 GHz 4 x HDD Supported 0 x HDD Installed 4 x SSD Supported 0 x SSD Installed 4 GB RAM DDR4 SDRAM Serial ATA/600 Controller RAID Supported 0, 1

• Number of Hard Drives Supported:
  4
  
• Number of Hard Drives Installed:
  0
  
• Number of Solid State Drive Supported:
  4
  
• Number of Solid State Drive Installed:
  0
  

• Number of Processors Installed:
  1
  
• Processor Manufacturer:
  AMD
  
• Processor Type:
  Ryzen
  
• Processor Model:
  V1500B
  
• Processor Core:
  Quad-core (4 Core)
  
• Processor Speed:
  2.20 GHz
  

• Standard Memory:
  4 GB
  
• Memory Technology:
  DDR4 SDRAM
  

• Ethernet Technology:
  2.5 Gigabit Ethernet
  

• Number of Total Expansion Bays:
  4
  
• Number of 2.5"/3.5" Bays:
  4
  

• Controller Type:
  Serial ATA/600
  
• RAID Supported:
  Yes
  
• RAID Levels:
  0, 1, 5, 6, 10, Basic, Hybrid RAID, JBOD
  

• Total Number of USB Ports:
  2
  
• Number of USB 3.2 Gen 1 Ports:
  2
  
• Network (RJ-45):
  Yes
  
• Number of Network (RJ-45) Ports:
  2
  

• Operating System:
  DiskStation Manager
  
• Operating System Supported:
  VMware ESXi 8.0, VMware ESXi 7.0 U1, VMware ESXi 7.0 U2, VMware ESXi 7.0 U3, VMware ESXi 7.0, VMware ESXi 6.7 U1, VMware ESXi 6.7 U2, VMware ESXi 6.7 U3, VMware ESXi 6.7, VMware ESXi 6.5 U1, VMware ESXi 6.5 U2, VMware ESXi 6.5 U3, Windows Server 2022
  

• Protocols:
  FTP, SFTP, CalDAV, LDAP, HTTPS, Kerberos, WEBDAV, SMB 1.0, CIFS, iSCSI, SNMP, SMB 3.0, SMB, SMB 2.0, NFSv4, NFS, HTTP, AFP, NFSv3, RSync, CIFS/SMB, NFSv4.1
  

• Number of Power Supplies Installed:
  1
  
• Maximum Power Supply Wattage:
  100 W
  

• Cooling Fan:
  Yes
  
• Height:
  6.5"
  
• Width:
  7.8"
  
• Depth:
  8.8"
  
• Form Factor:
  Desktop
  
• Compatible Drive Bay Width:
  2.5", 3.5"
  
• Weight (Approximate):
  4.98 lb
  

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: 24.25-25.75^oC Humidity: 58.2-61.8%
Temperature
Operating Temperature
0^oC to 40^oC (32^oF to 104^oF)
Storage Temperature
-20^oC to 60^oC (-5^oF to 140^oF)
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