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Synology DiskStation DS1817


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8-bay DiskStation (up to 18-bay), Quad Core 1.7 GHz, 4GB RAM, 2x10GbE Base TPowerful all-in-one private cloud solution High capacity, fully-featured powerhouse DS1817 is a powerful, scalable 8-bay NAS delivering outstanding... Read more

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8-bay DiskStation (up to 18-bay), Quad Core 1.7 GHz, 4GB RAM, 2x10GbE Base T

Powerful all-in-one private cloud solution

High capacity, fully-featured powerhouse

DS1817 is a powerful, scalable 8-bay NAS delivering outstanding data transfer rates. With built-in dual 10GbE LAN ports in addition to dual Gigabit ports, DS1817 supports Link Aggregation and failover functions for maximum performance and service continuity.

  • Network Two built-in 10GBASE-T LAN ports
  • Memory 4GB DDR3L, up to 8GB
  • Performance 1,577 MB/s sequential reading
  • Scalability Up to 18 drives with two DX517expansion units

Ultimate file management and sharing

File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS1817 supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.


    Maximize system uptime with Synology High Availability (SHA)

    Enjoy a complete hardware and data redundancy solution with Synology High Availability (SHA) in case of unforeseen disasters. After joining two Synology NAS devices to form a high-availability cluster, the NAS acting as the active server will handle all data operations and services, while cloning the entire system to the passive standby server.

    Automatic failover

    Real-time protection, minimum data loss

    No-hassle installation and maintenance

    Maximize service availability for virtualization through iSCSI


    Access and sync your files seamlessly

    Synology Drive provides a built-in universal portal to access your data anytime and anywhere, and synchronize all your files across platforms, including Windows, macOS, Linux, Android, and iOS. Learn more

    • Sync files on demand
      Save the storage space and network bandwidth of your PC.
    • Go back in time
    • Easily retrieve previous versions of your shared files.
    • Back up your data
      Protect your files as scheduled or in real-time.


    Real-time collaboration on your private cloud

    Synology Office is a collaboration package combining the convenience and usability of public clouds with the data privacy and security guaranteed by private clouds. It allows you to work seamlessly together on documents and spreadsheets in a protected environment. Learn more

    1. Real-time collaboration on the same online documents to boost productivity,
    2. Instant communication on Synology Chat during the editing of documents or spreadsheets
    3. Version control for you to navigate all the changes and retrieve previous versions with just a click


    Fully certified storage virtualization solutions

    Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.

      Hardware Specs
      CPU CPU Model Annapurna Labs Alpine AL-314
      CPU Architecture 32-bit
      CPU Frequency 4-core 1.7 GHz
      Hardware Encryption Engine (AES-NI) Yes
      Memory System Memory¹ 4 GB DDR3L non-ECC SODIMM
      Pre-installed Memory Module 4 GB (4 GB x 1)
      Total number of Memory Slot 2
      Maximum Memory Capacity 8 GB (4 GB x 2)
      Storage Drive Bays 8
      Maximum Drive Bays with Expansion Unit 18 (DX517 x 2)
      Compatible Drive Type²
      (See all supported drives)
    • 3.5" SATA HDD
    • 2.5" SATA HDD
    • 2.5" SATA SSD
    • Maximum Single Volume Size³ 108 TB
      Hot Swappable Drive Yes
      External Ports RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support)
      RJ-45 10GbE LAN Port 2 (with Link Aggregation / Failover support)
      USB 3.2 Gen 1 Port 2
      eSATA Port 2
      File System Internal Drives
    • EXT4
    • External Drives
    • EXT4
    • EXT3
    • FAT
    • NTFS
    • HFS+
    • exFAT (Purchased Separately)
    • Appearance Size (Height x Width x Depth) 157 mm x 340 mm x 233 mm
      Weight 5.31 kg
      Others System Fan 120 mm x 120 mm x 2 pcs
      Fan Speed Mode
    • Cool Mode
    • Quiet Mode
    • Easy Replacement System Fan Yes
      Brightness Adjustable Front LED Indicators Yes
      Power Recovery Yes
      Noise Level⁴ 24.2 dB(A)
      Scheduled Power On / Off Yes
      Wake on LAN / WAN Yes
      Power Supply Unit / Adapter 250 W
      AC Input Power Voltage 100 V to 240 V AC

      Power Frequency 50/60 Hz, Single Phase

      Power Consumption⁵ 59.1 W (Access)
      26.4 W (HDD Hibernation)
      British Thermal Unit 201.66 BTU/hr (Access)
      90.08 BTU/hr (HDD Hibernation)
      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
      • FCC
      • CE
      • BSMI
      • EAC
      • CCC
      • KC
      • RCM
      Warranty 3 Years

      ¹ 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.

      ² "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.

      ³ Storage Pool and volume creation require all drives to be listed as compatible on the device model's compatibility list.

      ⁴ 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%.

      ⁵ Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).


      • Model specifications are subject to change without prior notice.
      • The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
      • The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
      • If usage requirements exceed the specifications above, please contact our regional partners for professional advice.

      DSM Specs
      Storage Management Maximum Internal Volume Number 64

      SSD read/write cache (White Paper) Yes

      SSD TRIM Yes
      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
    • RAID 6
    • Global Hot Spare Supported RAID Type
    • Synology Hybrid RAID
    • RAID 1
    • RAID 5
    • RAID 6
    • RAID 10
    • File Services¹ File Protocol
      Maximum Concurrent CIFS/AFP/FTP Connections 500
      Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 1,000
      Windows Access Control List (ACL) Integration Yes
      NFS Kerberos Authentication Yes
      Account & Shared Folder Maximum Local User Accounts 2,048

      Maximum Local Groups 256
      Maximum Shared Folder

      Maximum Shared Folder Sync Tasks 8
      High Availability Synology High Availability Yes
      Log Center Syslog Events per Second 400
      Virtualization Support VMware vSphere 6 with VAAI Yes
      Windows Server 2012 Yes
      Windows Server 2012 R2 Yes
      Windows Server 2016 Yes
      Windows Server 2019 Yes
      Citrix Ready Yes
      OpenStack Yes
      General Specifications Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV

      Supported Browsers
    • Google Chrome
    • Firefox
    • Microsoft Edge
    • Internet Explorer 10 onwards
    • Safari 10 onwards
    • Safari (iOS 10 onwards)
    • Google Chrome (Android 6.0 onwards)

    • Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

      ¹ The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.

      Add-on Package
      Central Management System Yes
      Synology Chat Maximum Users² 800
      Cloud Station Server³ Recommended Number of Hosted Files 500,000
      Recommended Number of Concurrent Sync Clients 450
      Download Station Maximum Concurrent Download Tasks 80
      exFAT Access (Optional) Yes
      iSCSI Manager
      Maximum iSCSI Target Number
      Maximum iSCSI LUN 256
      iSCSI LUN Clone/Snapshot, Windows ODX Yes
      Media Server DLNA Compliance Yes
      Moments Facial Recognition Yes
      Surveillance Station⁴
      Maximum IP cam (Licenses required) 30 (including 2 Free License) (See All Supported IP Cameras)

      Total FPS (H.264) 900 FPS @ 720p (1280x720)
      480 FPS @ 1080p (1920x1080)
      300 FPS @ 3M (2048x1536)
      450 FPS @ 5M (2591x1944)
      250 FPS @ 4K (3840x2160)
      Total FPS (MJPEG) 480 FPS @ 720p (1280x720)
      300 FPS @ 1080p (1920x1080)
      250 FPS @ 3M (2048x1536)
      200 FPS @ 5M (2591x1944)
      Synology Drive⁵ Recommended Number of Hosted Files 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
      Maximum Number of Concurrent Sync Clients 450 (the number of connections that can be maintained when the recommended number of hosted files was reached)
      Synology Office⁶
      Maximum Users 400
      Video Station Video Transcoding Group 1 - Type 2(See more)
      Maximum Transcoding Channel Number 1 channel, 30 FPS @ 720p (1280x720), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
      VPN Server Maximum Connections 20

      ² The number of concurrent HTTP connections for Synology Chat was configured to the maximum.


    • 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.
    • 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.
    • The maximum channel number also includes devices installed on Virtual DSM.
    • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
    • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
    • EXT4 file system and non-encrypted shared folders were used during the aforementioned testing.
    • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
    • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
    • Delivery


      Shipping/Delivery Method Cost  Lead Time Delivery Period
      Self Collection Free   2 Working Days  Monday to Saturday
      Standard Shipping Orders below $500 = $15 5 Working Days Monday to Friday
           Orders above $500 = FREE


      For Self Collection, Please call our customer service hotline (+65 6262 0402) prior to coming down. Our store is located at 2 Gambas Crescent #06-21,
      Nordcom II, Singapore 757044

      Delivery/ self collection may take a longer time to reach you during this time and throughout campaigns and festive season.

      All goods purchased from can only be delivered to addresses within Singapore main island. We are unable to deliver to Jurong Island, Army Camps, Changi Airport, Tuas, Fisher Ports and etc.

      We do not deliver outside Singapore or to post office boxes.

      For products fulfilled by external vendors (Backorder), please refer to the individual product listing for more shipping information.

      For more information, you may reach us via email to

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      Synology DiskStation DS1817

      No RAM Upgrade
      No RAM Upgrade