Applied Models

Supports creating volumes across different units

25 series:DS1825+, DS1525+, DS925+, DS725+

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.

Storage

Drive Bays

5

Drive Type (See all supported drives)

3.5" SATA HDD
2.5" SATA SSD

Hot Swappable Drive*

✓

RAID Management through Synology DSM

✓

Notes

Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article.

External Ports

Expansion Port

1

Appearance

Size (Height x Width x Depth)

166 mm x 230 mm x 223 mm

Weight

2.46 kg

Power

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)

British Thermal Unit

120.69 BTU/hr (Access)
24.02 BTU/hr (HDD Hibernation)

Notes

For more information on how power consumption is measured, refer to this article.

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

Others

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%

Certification

Certification

FCC
CE
BSMI
UKCA
EAC
VCCI
RCM
KC
BIS

Warranty

Warranty

3-year hardware warranty

Notes

Availability varies by region. Before purchasing, please visit the official web pages of EW201/202 and Extended Warranty Plus for a list of eligible regions.
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

Environment

Environment

RoHS Compliant

Packaging Content

Packaging Content

Main Unit X 1
Expansion Cable: USB Type-C X1
Accessory Pack X 1
AC Power Adapter X 1
AC Power Cord X 1

Optional Accessories

Optional Accessories

Enterprise Series 3.5" SATA HDD: HAT5300 Series
Plus Series 3.5" SATA HDD: HAT3300 Series
Enterprise Series 2.5" SATA SSD: SAT5200 Series