Synology DiskStation NAS DS218 2-Bay

Versatile NAS server for centralized file storage and real-time 4K H.265 video transcoding

Synology DS218 comes with a new 64-bit quad-core processor, delivering excellent data transfer speed, large storage volume management, and 10-bit 4K H.265 video transcoding on the fly. 

CPU

Quad-core 1.4GHz 

Memory

2GB DDR4

Performance

Over 112 MB/s and 112 MB/s sequential read and write

Capacity

Surpass 16TB per single volume

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.

Synchronize files across your devices

Cloud Station Suite provides real-time data synchronization across all your devices and other Synology NAS. "Intelliversioning" keeps the most important file versions to better utilize storage space. Learn more 

Cloud Station Sharesync

Cloud Station Drive

Cloud Station Server

DS Cloud

Easy backup solutions

Back up any computer or mobile device with Synology's comprehensive multi-versioning backup solution. You can protect your computer and NAS against malicious attacks including the rising encryption-based ransomware threats.

Easy file access with QuickConnect

Access files on your Synology NAS over the Internet without the hassle of setting up port forwarding rules, DDNS, or other complicated network settings. QuickConnect allows you to connect via a secure, customizable address, so that you can instantly access media and work files on any Internet-connected device with no additional charge.

4K Multimedia Server

Access and stream your favorite 4K content anywhere, anytime. DS218 supports 10-bit 4K H.265 online transcoding. With Video Station and DS video, you can convert and play 4K videos from any computer, mobile device, or other media players that don't support Ultra HD formats.

4K Multimedia Server

Access and stream your favorite 4K content anywhere, anytime. DS218 supports 10-bit 4K H.265 online transcoding. With Video Station and DS video, you can convert and play 4K videos from any computer, mobile device, or other media players that don't support Ultra HD formats.

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
• 2LAN indicator
• 3Drive status indicator

• 4USB 2.0 port
• 5USB copy button
• 6Power button and indicator

• 7USB 3.0 port
• 8Reset button
• 91GbE RJ-45 port

• 10Power port
• 11Fan
• 12Kensington Security Slot
• Hardware Specifications CPU CPU Model Realtek RTD1296 CPU Architecture 64-bit CPU Frequency Quad Core 1.4 GHz Hardware Encryption Engine  Hardware Transcoding Engine 10-bit H.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 60 Memory System Memory 2 GB DDR4 Storage Drive Bays 2 Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  Maximum Internal Raw Capacity 24 TB (12 TB drive x 2) (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 single volume size is not directly related to the maximum raw capacity. (Learn more)
  External Ports RJ-45 1GbE LAN Port 1 USB 2.0 Port 1 USB 3.0 Port 2 USBCopy  File System Internal Drives EXT4 External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
  Notes exFAT Access is purchased separately in Package Center. Appearance Size (Height x Width x Depth) 165 mm x 108 mm x 233.2 mm  Weight 1.3 kg  Others System Fan 92 mm x 92 mm x 1 pcs Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  Brightness adjustable front LED indicators  Power Recovery  Noise Level* 19.3 dB(A)  Scheduled Power On/Off  Wake on LAN/WAN  Power Supply Unit / Adapter 60W  AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption* 14.99 W (Access)  5.78 W (HDD Hibernation)  British Thermal Unit 51.15 BTU/hr (Access)  19.72 BTU/hr (HDD 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 Class B
  • CE Class B
  • BSMI Class B
  Warranty 2 Years Notes Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s). DSM Specifications ( See more ) Storage Management Maximum Internal Volume Number 256 Maximum iSCSI Target Number 10 Maximum iSCSI LUN 10 SSD TRIM  Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  RAID Migration Basic to RAID 1 Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
  Volume Expansion by Adding a HDD Synology Hybrid RAID File Sharing Capacity Maximum Local User Accounts 2048 Maximum Local Groups 256 Maximum Shared Folder 256 Maximum Shared Folder Sync Tasks 2 Maximum Concurrent CIFS/AFP/FTP Connections 200 Windows Access Control List (ACL) Integration  NFS Kerberos Authentication  Log Center  Syslog Events per Second 100 Add-on Packages (learn more about the complete add-on package list) Chat  Maximum Users 500 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 Devices 200 Maximum Number of Synced Files (ext4) 100,000 / single file reaction time 632 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 1KByte 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 Station  Maximum Concurrent Download Tasks 30 exFAT Access (optional)  Media Server  DLNA Compliance  Office  Maximum Users 100 Maximum Simultaneous Editing Users 30 Notes
  • 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 Station  Maximum IP cam (Licenses required) 20 (including 2 Free License) (See All Supported IP Cameras) Total FPS (H.264)* 600 FPS @ 720p (1280x720)  300 FPS @ 1080p (1920×1080)  200 FPS @ 3M (2048x1536)  150 FPS @ 5M (2591x1944)  110 FPS @ 4K (3840x2160) Total FPS (H.265)* 600 FPS @ 720p (1280x720)  300 FPS @ 1080p (1920×1080)  240 FPS @ 3M (2048x1536)  200 FPS @ 5M (2591x1944)  180 FPS @ 4K (3840x2160) Total FPS (MJPEG)* 240 FPS @ 720p (1280x720)  200 FPS @ 1080p (1920×1080)  130 FPS @ 3M (2048x1536)  80 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 4K Group 3 (See more) Maximum Transcoding Channel Number 1 channel, 60 FPS @ 4K (4096 x 2160), H.265 (HEVC), 10-bit or  1 channel, 30 FPS @ 1080p (1920×1080), H.264 (AVC)/H.265 (HEVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1 VPN Server  Maximum Connections 5 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
  • VS360HD
  • VS960HD