Synology DS418J NAS 4Bay

$439.00



  • Model: DS418J
  • Shipping Weight: 5kgs
  • 2 Units in Stock

Hardware SpecificationsCPUCPU ModelRealtek RTD1293CPU Architecture64-bitCPU FrequencyDual Core 1.4 GHzHardware Encryption EngineMemorySystem Memory1 GB DDR4StorageDrive Bays4Compatible Drive Type* (See all supported drives)

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

Maximum Internal Raw Capacity48 TB (12 TB drive x 4) (Capacity may vary by RAID types)Maximum Single Volume Size108 TBNotes

  • "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 single volume size is not directly related to the maximum raw capacity. (Learn more)

External PortsRJ-45 1GbE LAN Port1USB 3.0 Port2File SystemInternal DrivesEXT4External Drives

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

NotesexFAT Access is purchased separately in Package Center.AppearanceSize (Height x Width x Depth)184 mm x 168 mm x 230 mm 
Weight2.21 kg 
OthersSystem Fan80 mm x 80 mm x 2 pcsFan Speed Mode

  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode

Brightness adjustable front LED indicatorsPower RecoveryNoise Level*20.6 dB(A) 
Scheduled Power On/OffWake on LAN/WANPower Supply Unit / Adapter90W 
AC Input Power Voltage100V to 240V ACPower Frequency50/60 Hz, Single PhasePower Consumption*21.22 W (Access) 
8.97 W (HDD Hibernation) 
British Thermal Unit72.41 BTU/hr (Access) 
30.61 BTU/hr (HDD Hibernation) 
Environment TemperatureOperating 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% RHCertification

  • FCC Class B
  • CE Class B
  • BSMI Class B
  • EAC
  • CCC
  • RCM
  • KC

Warranty2 YearsNotesPower consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).DSM Specifications ( See more )Storage ManagementMaximum Internal Volume Number256Maximum iSCSI Target Number10Maximum iSCSI LUN10SSD TRIMSupported 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

Volume Expansion by Adding a HDD

  • Synology Hybrid RAID
  • RAID 5
  • JBOD

Global Hot Spare Supported RAID Type

  • Synology Hybrid RAID
  • RAID 1
  • RAID 5

File Sharing CapacityMaximum Local User Accounts1024Maximum Local Groups256Maximum Shared Folder256Maximum Shared Folder Sync Tasks2Maximum Concurrent CIFS/AFP/FTP Connections100Windows Access Control List (ACL) IntegrationNFS Kerberos AuthenticationLog CenterSyslog Events per Second100Add-on Packages (learn more about the complete add-on package list)ChatMaximum Users10Notes

  • 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 ServerMaximum Number of Concurrently Connected Devices100Maximum Number of Synced Files (ext4)100,000 / single file reaction time 789 msNotes

  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
  • File reaction time refers to the preparation time required for other devices to start downloading a 10KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.

Download StationMaximum Concurrent Download Tasks30DriveMaximum Number of Synced Files100,000 / single file reaction time 941 msMaximum Number of Concurrent Connections for PC Clients200Notes

  • The EXT4 file system was used for the purpose of testing.
  • The maximum number of concurrent connections refers to the maximum number of connections that could be maintained when the maximum number of synced files was reached.
  • File reaction time refers to the preparation time required for other devices to start downloading a 10KByte file from a Synology NAS after the file has been added to the NAS.
  • Non-encrypted shared folders were used during the aforementioned testing.

exFAT Access (optional)Media ServerDLNA ComplianceMomentsFacial recognitionSubject recognitionOfficeMaximum Users200Notes

  • 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

Surveillance StationMaximum IP cam (Licenses required)16 (including 2 Free License) (See All Supported IP Cameras)Total FPS (H.264)*480 FPS @ 720p (1280x720) 
240 FPS @ 1080p (1920×1080) 
150 FPS @ 3M (2048x1536) 
100 FPS @ 5M (2591x1944) 
70 FPS @ 4K (3840x2160)Total FPS (H.265)*480 FPS @ 720p (1280x720) 
320 FPS @ 1080p (1920×1080) 
224 FPS @ 3M (2048x1536) 
160 FPS @ 5M (2591x1944) 
100 FPS @ 4K (3840x2160)Total FPS (MJPEG)*224 FPS @ 720p (1280x720) 
150 FPS @ 1080p (1920×1080) 
100 FPS @ 3M (2048x1536) 
60 FPS @ 5M (2591x1944)NotesSurveillance 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.Video StationVideo TranscodingGroup 2 (See more)VPN ServerMaximum Connections5Environment & PackagingEnvironmentRoHS CompliantPackaging 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
  • VS360HD
  • VS960HD



This product was added to our catalog on Wednesday 10 January, 2018.

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