CPU
CPU Model Annapurna Labs Alpine AL-212
CPU Architecture 32-bit
CPU Frequency Dual Core 1.4 GHz
Hardware Encryption Engine

Memory
System Memory: 1 GB DDR3

Storage
Drive Bays 4
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity 40 TB (10 TB drive x 4) (Capacity may vary by RAID types)
Maximum Single Volume Size 16 TB
Hot Swappable Drive
Notes
"Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)

External Ports
RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support)
USB 3.0 Port 3
File System
Internal Drives EXT4
External Drives
EXT4
EXT3
FAT
NTFS
HFS+*
exFAT*
Notes
HFS+ is read only, max 2TB volume size.
exFAT Access is purchased separately in Package Center.

Appearance
Size (Height x Width x Depth) 165 mm x 203 mm x 233.2 mm
Weight 2.04 kg

Others
System Fan 92 mm x 92 mm x 2 pcs
Fan Speed Mode
Cool Mode
Quiet Mode
Power Recovery
Noise Level* 20.2 dB(A)
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter 90W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 31.96 W (Access)
10.14 W (HDD Hibernation)
British Thermal Unit 109.13 BTU/hr (Access)
34.62 BTU/hr (HDD Hibernation)
Environment Temperature
Operating Temperature 5°C to 40°C (40°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
FCC Class B
CE Class B
BSMI Class B
Warranty 2 Years