Synology NAS DS218J

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5.900.000 VND
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Hardware Specifications
CPU: CPU ModelMarvell Armada 385 88F6820
CPU Architecture32-bit
CPU FrequencyDual Core 1.3 GHz
Hardware Encryption Engine
Memory
System Memory512 MB DDR3
Storage
Drive Bays: 2
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD (with optional 2.5" Disk Holder)
  • 2.5" SATA SSD (with optional 2.5" Disk Holder)
Maximum Internal Raw Capacity28 TB (14 TB drive x 2) (Capacity may vary by RAID types)
Maximum Single Volume Size16 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 Port1
USB 3.0 Port2
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 100 mm x 225.5 mm 
Weight0.88 kg 
 
Others
System Fan92 mm x 92 mm x 1 pcsFan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode
Brightness adjustable front LED indicatorsPower RecoveryNoise Level*18.2 dB(A) 
Scheduled Power On/OffWake on LAN/WANPower Supply Unit / Adapter60W 
AC Input Power Voltage100V to 240V ACPower Frequency50/60 Hz, Single PhasePower Consumption*17.48 W (Access) 
7.03 W (HDD Hibernation) 
British Thermal Unit59.68 BTU/hr (Access) 
24 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
  • EAC
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
Warranty 2 Years
Notes
  • Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DSM Specifications ( See more )
Storage Management
Maximum Internal Volume Number 256
Maximum iSCSI Target Number 10
Maximum iSCSI LUN 10
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
RAID MigrationBasic to RAID 1
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
Volume Expansion by Adding a HDDSynology Hybrid RAID
 
File Services
File Protocol CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections100
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
 
Account & Shared Folder
Maximum Local User Accounts1024
Maximum Local Groups256
Maximum Shared Folder256
Maximum Shared Folder Sync Tasks2
 
Log Center
Syslog Events per Second100
 
Chat
Maximum Users10
Notes
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
Cloud Station Server
Maximum Number of Concurrently Connected Devices100
Maximum Number of Hosted Files (ext4)100,000
Notes
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
  • The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
Download Station
Maximum Concurrent Download Tasks 30
exFAT Access (optional)
Media Server
DLNA Compliance
Moments
Facial recognition
Subject recognition
Surveillance Station
Maximum IP cam (Licenses required)14 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)*420 FPS @ 720p (1280x720) 
120 FPS @ 1080p (1920×1080) 
90 FPS @ 3M (2048x1536) 
60 FPS @ 5M (2591x1944) 
20 FPS @ 4K (3840x2160)
Total FPS (H.265)*420 FPS @ 720p (1280x720) 
210 FPS @ 1080p (1920×1080) 
140 FPS @ 3M (2048x1536) 
90 FPS @ 5M (2591x1944) 
30 FPS @ 4K (3840x2160)
Total FPS (MJPEG)*140 FPS @ 720p (1280x720) 
70 FPS @ 1080p (1920×1080) 
40 FPS @ 3M (2048x1536) 
20 FPS @ 5M (2591x1944)
Notes
Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
 
Synology Drive
Recommended Number of Hosted Files100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Connections for PC Clients200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
 
Notes
  • The recommended number of hosted files refers to the maximum number of files that can be indexed and hosted by the Drive service.
  • The recommended number of concurrent connections refers to the maximum number of connections that can be maintained when the maximum number of hosted files was reached.
  • Exceeding the limits above may result in longer response time in file operations.
  • EXT4 file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Maximum Users 200
Notes
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Video Station
Video Transcoding Group 2 (See more)
Notes
VPN Server
Maximum Connections: 10
Environment & Packaging
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
  • Surveillance Device License Pack
  • Disk Holder: Type C
  • VS360HD
  • VS960HD