Synology DiskStation | DS225+

Compact 2-bay NAS with Intel Celeron J4125, multi-gig 2.5GbE networking, and DX525 expansion support for scalable home-office storage.

Key Highlights (bullets)

  • 2.5 GbE + 1 GbE: for faster file transfers.
  • Intel Celeron J4125 Quad-Core: for robust multitasking.
  • DX525 Expansion Ready: scale to more drives as you grow.
Categories ,
Hardware Specifications
CPU
CPU Model Intel Celeron J4125
CPU Quantity 1
CPU Core 4
CPU Architecture 64-bit
CPU Frequency 2.0 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
Memory
System Memory 2 GB DDR4 non-ECC
Total Memory Slots 1
Maximum Memory Capacity 6 GB (2 GB + 4 GB)
Notes
  • Synology reserves the right to replace memory modules with the same or higher frequency based on the supplier’s 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 a complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
Storage
Drive Bays 2
Drive Type (See all supported drives)
  • 3.5″ SATA HDD
  • 2.5″ SATA SSD
Hot Swappable Drive*
Notes 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 1GbE LAN Port 1
RJ-45 2.5GbE LAN Port 1
USB 3.2 Gen 1 Port 2
USB Copy
Notes This device’s 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
Appearance
Size (Height x Width x Depth) 165 mm x 108 mm x 232.2 mm
Weight 1.3 kg
Others
System Fan 92 mm x 92 mm x 1 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 19.6 dB(A)
Scheduled Power On/Off
Wake on LAN / WAN
Power Supply Unit / Adapter 60 watts
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 16.98 watts (Access)
6.08 watts (HDD Hibernation)
British Thermal Unit 57.90 BTU/hr (Access)
20.73 BTU/hr (HDD Hibernation)
Notes
  • For more information on how power consumption is measured.
  • 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%
Temperature
Operating Temperature 0°C to 40°C (32°F to 104°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
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • BIS
Warranty
Visit Warranty Policy for details.
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