CPU

CPU ModelIntel Celeron J3355CPU Architecture64-bitCPU FrequencyDual Core 2.0 (base) / 2.5 (burst) GHzHardware Encryption Engine (AES-NI)Hardware Transcoding EngineH.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30

Memory

System Memory2 GB DDR3LMemory Module Pre-installed2 GB (2 GB x 1)Total Memory Slots2Memory Expandable up to6 GB (2 GB + 4 GB)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.

Storage

Drive Bays2Compatible Drive Type* (See all supported drives)

• 3.5" SATA HDD
• 2.5" SATA HDD 
• 2.5" SATA SSD

Maximum Internal Raw Capacity32 TB (16 TB drive x 2) (Capacity may vary by RAID types)Maximum Single Volume Size*108 TBHot Swappable DriveNotes

• "Compatible drive type" indicates 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 single volume size is not directly related to the maximum raw capacity. (Learn more) 
• Each internal volume (may consist of multiple drives) is expandable up to 108TB.

External Ports

RJ-45 1GbE LAN Port1USB 3.0 Port3eSATA Port1USB / SD Copy

File System

Internal Drives

• Btrfs
• EXT4

External Drives

• Btrfs
• EXT4
• EXT3
• FAT
• NTFS
• HFS+
• exFAT*

NotesexFAT Access is purchased separately in Package Center.

Appearance

Size (Height x Width x Depth)165 mm x 108 mm x 232.2 mmWeight1.30 kg

Others

System Fan92 mm x 92 mm x 1 pcsFan Speed Mode

• Full-Speed Mode
• Cool Mode
• Quiet Mode

Brightness Adjustable Front LED IndicatorsPower RecoveryNoise Level*19.3 dB(A)Scheduled Power On / OffWake on LAN / WANPower Supply Unit / Adapter60 WAC Input Power Voltage100 V to 240 V ACPower Frequency50/60 Hz, Single PhasePower Consumption*17.23 W (Access) 
5.4 W (HDD Hibernation)British Thermal Unit58.79 BTU/hr (Access) 
18.43 BTU/hr (HDD Hibernation)Notes

• Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
• Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%

Temperature

Operating Temperature5°C to 40°C (40°F to 104°F)Storage Temperature-20°C to 60°C (-5°F to 140°F)Relative Humidity5% to 95% RH

Certification

• EAC
• VCCI
• CCC
• RCM
• KC
• FCC
• CE
• BSMI

Warranty

2 YearsNotesThe warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

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 1
• Quick Installation Guide X 1

Optional Accessories

• D3NS1866L-4G DDR3 non-ECC SO-DIMM
• Surveillance Device License Pack
• Expansion Unit: DX517 X 1
• VS360HD
• VS960HD