Synology DiskStation 4-Bay NAS (DS925+)

Please ensure storage drives are on the compatible drives list provided by Synology. Incompatibilities caused by unsupported drives may not be covered by warranty.

SPECIFICATIONS:

CPU Model · AMD Ryzen V1500B

CPU Quantity · 1

CPU Core · 4

CPU Architecture · 64-bit

CPU Frequency · 2.2 GHz

Hardware Encryption Engine · ✓

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 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 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.

Drive Bays

4

Maximum Drive Bays with Expansion Unit

9 (DX525 x 1)

M.2 Drive Slots

2 (NVMe)

Drive Type (See all supported drives)

• 3.5" SATA HDD
• 2.5" SATA SSD
• M.2 2280 NVMe SSD

Hot Swappable Drive*

✓

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.

RJ-45 2.5GbE LAN Port

2

USB 3.2 Gen 1 Port

2

Expansion Port

1

Expansion Port Type

USB Type-C

Size (Height x Width x Depth)

166 mm x 199 mm x 223 mm

Weight

2.26 kg

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

✓

Power Recovery

✓

Noise Level*

20.5 dB(A)

Scheduled Power On / Off

✓

Wake on LAN / WAN

✓

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˚C; Humidity: 58.2-61.8%

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

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