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.
CPU
Quad-core 1.7GHz
Memory
4GB DDR3L, up to 8GB
High Performance
1,577 MB/s sequential reading
Scalability
Up to 18 drives with two DX517 expansion units
Engineered for reliability, backed by Synology
DS1817 is designed to reliably store your data and is backed by Synology's three-year hardware warranty. An optional two-year extended warranty is available in select regions for up to five years of coverage. Learn more

Synchronize files across your devices
Cloud Station Suite provides real-time data synchronization across all your devices, such as computers, mobile devices, and other Synology NAS whenever a file is modified. "Intelliversioning" keeps the most important file versions to better utilize storage space. Learn more
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Cloud Station Sharesync
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Cloud Station Drive
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Cloud Station Server
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DS Cloud
Ultimate file management and sharing
File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operation without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and sharing of files with just a link. Supports SMB, FTP, AFP, NFS, WebDAV, compatible with any environment.

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

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.
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Automatic failover
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Real-time protection, minimum data loss
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No-hassle installation and maintenance
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Maximize service availability for virtualization through iSCSI
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.

Powered by Synology DSM
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.
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Desktop Backup
Simplified backup solution for your Mac, PC, and mobile devices.
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Public Cloud Integration
Backup and synchronize data easily between your public cloud accounts and your NAS.
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DSM UI
Award-winning operating system with an intuitive user interface and powerful capabilities.
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Security
Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.
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Multimedia
Complete multimedia solution for management, streaming, and playback.
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- 1Status indicator
- 2Alert indicator
- 3Drive status indicator
- 4Drive tray lock
- 5Power button and indicator
- 6LAN indicator
- 7Fan
- 8Power port
- 9Kensington Security Slot
- 10USB 3.0 port
- 1110GbE RJ-45 port
- 121GbE RJ-45 port
- 13eSATA port
- 14Reset button
