Synology DS1618+ is a 6-bay NAS that provides storage scalability perfect for tech enthusiasts and small- to medium-sized businesses by effortlessly handling workloads. Further, boost storage performance with the optional M.2 SSD cache or enhance network speeds by adding a 10 GbE NIC.

DS1618+4G 36TB (6 x 6TB) integrated w/ Seagate Enterprise Drives, High-performance 6-bay NAS with Quad-core 2.1GHz, 4GB DDR4 memory expandable 

 

Specifications:

CPU
CPU Model Intel Atom C3538
CPU Architecture 64-bit
CPU Frequency Quad Core 2.1 GHz
Hardware Encryption Engine (AES-NI)
Memory
System Memory 4 GB DDR4
Memory Module Pre-installed 4GB (1 x 4GB)
Total Memory Slots 2
Memory Expandable up to 32 GB (16 GB x 2)
Storage
Drive Bays 6
Maximum Drive Bays with Expansion Unit 16
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Maximum Internal Raw Capacity 72 TB (12 TB drive x 6) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 192 TB (12 TB drive x 16) (Capacity may vary by RAID types)
Maximum Single Volume Size 108 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)
  • Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB or 200TB if upgraded to 32GB RAM or more.
External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
USB 3.0 Port 3
eSATA Port 2
PCIe
PCIe Expansion 1 x Gen3 x8 slot (black, x4 link)
Add-in-card support
Notes DS1618+ with M2D17 can only support M.2 SATA SSD. M.2 NVMe/AHCI PCIe SSD is not supported.
File System
Internal Drives
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Notes exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth) 166 mm x 282 mm x 243 mm 
Weight 5.05 kg 
Others
System Fan 92 mm x 92 mm x 2 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Brightness adjustable front LED indicators
Power Recovery
Noise Level* 23.7 dB(A) 
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter 250W 
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 56.86 W (Access) 
25.76 W (System Hibernation) 
British Thermal Unit 194.01 BTU/hr (Access) 
87.9 BTU/hr (System Hibernation) 
Environment 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
  • EAC
  • VCCI
  • CCC
  • RCM
Warranty 3 Year Hardware Warranty
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 512
Maximum iSCSI Target Number 32
Maximum iSCSI LUN 256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read/Write Cache (White Paper)
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
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • RAID 5
  • RAID 6
  • JBOD
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
File Sharing Capacity
Maximum Local User Accounts 2048
Maximum Local Groups 256
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 8
Maximum Concurrent CIFS/AFP/FTP Connections 1000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
High Availability Manager
Log Center
Syslog Events per Second 800
Virtualization
VMware vSphere 6 with VAAI
Windows Server 2016
Citrix Ready
OpenStack
Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)
Central Management System
Chat
Maximum Users 1500
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.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Maximum Number of Concurrently Connected Devices 1000
Maximum Number of Concurrently Connected Devices (with RAM expansion) 2000
Maximum Number of Synced Files (btrfs) 1,000,000 / single file reaction time 747 ms
Maximum Number of Synced Files (ext4) 1,000,000 / single file reaction time 479 ms
Notes
  • 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.
Document Viewer
Download Station
Maximum Concurrent Download Tasks 80
Drive
Maximum Number of Synced Files 1,000,000 / single file reaction time 437 ms
Maximum Number of Concurrent Connections for PC Clients 550
Notes
  • The Btrfs 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.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Non-encrypted shared folders were used during the aforementioned testing.
exFAT Access (optional)
MailPlus / MailPlus Server
Free Email Accounts 5 (Licenses required for additional accounts)
Recommended MailPlus Client Number Up to 100 (Btrfs) / 100 (EXT4)
Maximum Server Performance 1,055,000 (Btrfs) /1,171,000 (EXT4) emails per day, approx. 32 GB (Btrfs) / 36 GB (EXT4)
Notes
  • The CPU and RAM usages were both under 80% when testing recommended client numbers.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DLNA Compliance
Moments
Facial recognition
Subject recognition
Office
Maximum Users 1800
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.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Snapshot Replication
Maximum Snapshots per Shared Folder 1024
Maximum Snapshots of all Shared Folder 65536
Surveillance Station
Maximum IP cam (Licenses required) 40 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)* 1200 FPS @ 720p (1280x720) 
960 FPS @ 1080p (1920×1080) 
520 FPS @ 3M (2048x1536) 
320 FPS @ 5M (2591x1944) 
240 FPS @ 4K (3840x2160)
Total FPS (H.265)* 1200 FPS @ 720p (1280x720) 
1200 FPS @ 1080p (1920×1080) 
880 FPS @ 3M (2048x1536) 
520 FPS @ 5M (2591x1944) 
400 FPS @ 4K (3840x2160)
Total FPS (MJPEG)* 560 FPS @ 720p (1280x720) 
270 FPS @ 1080p (1920×1080) 
190 FPS @ 3M (2048x1536) 
110 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.
Video Station
Video Transcoding Group 1 - Type 1 (See more)
Maximum Transcoding Channel Number 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Virtual Machine Manager
Maximum Virtual DSM Number (Licenses required) 4 (including 1 Free License) (Learn more)
Notes Virtual Machine Manager is not supported on hosts running Synology High Availability.
VPN Server
Maximum Connections 20
Environment & Packaging
Environment RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
  • Surveillance Device License Pack
  • D4NS2133-4G
  • RAMEC2133DDR4SO-16G DDR4 ECC SO-DIMM
  • Expansion Unit: DX517 X 2
  • VS360HD
  • VS960HD
  • Synology Ethernet Adapter E10G15-F1
  • Synology Ethernet Adapter E10G17-F2
  • Synology M2D17 M.2 SSD adapter card
Notes Mixed usage of non-ECC and ECC UDIMMs is not supported.

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Synology DS1618+ 8GB 6-Bay NAS Server integrated with 36TB (6x6TB) Seagate Enterprise drives.

Your Custom Configuration:
  • No Hard Drive
  • No RAID
  • No RAM Upgrade
  • No RAIL
  • No Network Card
  • No Warranty
  • No SSD Cache