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 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 Bays 4
M.2 Drive Slots 2 (NVMe)
Drive Type
  • 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 https://kb.synology.com/DSM/tutorial/Drive_compatibility_policies.
External Ports
 RJ-45 1GbE LAN Port 1
RJ-45 2.5GbE LAN Port 1
USB 3.2 Gen 1 Port 2
Notes MTU value of 1GbE LAN port has a limit of 1500.
Appearance
 Size (Height x Width x Depth) 166 mm x 199 mm x 223 mm
Weight 2.18 kg
Others
 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* 21.6 dB(A)
Scheduled Power On / Off √
Wake on LAN / WAN √
Power Supply Unit / Adapter 90 watts
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 28.25 watts (Access)6.10 watts (HDD Hibernation)
British Thermal Unit 96.33 BTU/hr (Access)20.79 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 SSDs and in an idle state. Two G.R.A.S. type 40AE microphones were 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)
Relative Humidity 5% to 95% RH
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
  • BIS
Warranty
 3-year hardware warranty, extendable to 5 years with EW201
Notes
  • The warranty period starts from the purchase date as stated on your purchase receipt.
  • EW201/EW202 is only available in Asia, Africa, and Oceania. Refer to the Extended Warranty website for details on supported countries/regions. 
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
Optional Accessories
  • DDR4 non-ECC SODIMM: D4NS01-4G
  • Enterprise Series 3.5" SATA HDD: HAT5300 Series
  • Plus Series 3.5" SATA HDD: HAT3300 Series
  • Enterprise Series 2.5" SATA SSD: SAT5200 Series
  • Enterprise Series M.2 2280 NVMe SSD: SNV3400 Series
DSM Specifications
Storage Management
 Maximum Single Volume Size 108 TB
Maximum Internal Volume Number 32
M.2 SSD Storage Pool Support* √
SSD Read/Write Cache  √
SSD TRIM √
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
Notes
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • Creating M.2 storage pools requires the use of Synology-verified SSDs, which are rigorously tested under extreme temperature conditions. Thermal parameters for SSDs and NAS units are fine-tuned to ensure optimal management of thermal conditions under I/O-intensive environments. 
File System
 Internal Drives
  • Btrfs
  • ext4
External Drives
  • Btrfs
  • ext4
  • ext3
  • FAT32
  • NTFS
  • HFS+
  • exFAT
File Services
 File Protocol
  • SMB
  • AFP
  • NFS
  • FTP
  • WebDAV
  • Rsync
Maximum Number of SMB Connections (FSCT-Based) with RAM Expansion 10
Windows Access Control List (ACL) Integration √
NFS Kerberos Authentication √
Notes
  • Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports
  • The testing standard was based on client computers running Windows Server 2022 and Microsoft File Server Capacity Tool (FSCT).
Account & Shared Folder
 Maximum Local User Accounts 512
Maximum Local Groups 128
Maximum Shared Folder 128
Maximum Shared Folder Sync Tasks 4
Hybrid Share
 Hybrid Share Folder Number 10
/* ssgST: excluded from sampling */