Versatile 2-bay NAS for small offices and home users
Synology DS218 comes with a new 64-bit quad-core processor to deliver excellent data transfer speed and supports rich applications such as multimedia streaming, and file syncing and sharing. Data can be further protected with RAID 1 disk mirroring support.
Quad-core 1.4GHz
2GB DDR4
Over 112 MB/s and 112 MB/s sequential read and write
Surpass 16TB per single volume
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, DS218 supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.
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.
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.
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.
Turn your Synology NAS into a home media hub and stream your digital contents to computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.
Turn your Synology NAS into a home media hub and stream your digital contents to computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.
Complete surveillance solution for recording, monitoring, and management.
Learn moreBack up and synchronize data easily between public cloud accounts and your NAS.
Learn moreAward-winning operating system with an intuitive user interface and powerful capabilities.
Learn moreSecure data with comprehensive built-in security tools to protect your devices against evolving threats.
Learn more
Hardware Specifications |
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CPU |
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CPU |
CPU Model | Realtek RTD1296 |
| CPU Quantity | 1 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-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 |
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Memory |
System Memory | 2 GB DDR4 non-ECC |
| Notes | 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. | |
Storage |
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Storage |
Drive Bays | 2 |
| Compatible Drive Type* (See all supported drives) |
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| Maximum Single Volume Size* | 108 TB | |
| Hot Swappable Drive | ||
| Notes | "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. | |
External Ports |
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External Ports |
RJ-45 1GbE LAN Port | 1 |
| USB 2.0 Port | 1 | |
| USB 3.2 Gen 1 Port* | 2 | |
| USB / SD Copy | ||
| Notes | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. | |
File System |
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File System |
Internal Drives |
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| External Drives |
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| Notes | exFAT Access is purchased separately in Package Center. | |
Appearance |
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Appearance |
Size (Height x Width x Depth) | 165 mm x 108 mm x 233.2 mm |
| Weight | 1.3 kg | |
Others |
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Others |
System Fan | 92 mm x 92 mm x 1 pcs |
| Fan Speed Mode |
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| 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 | 60 W | |
| AC Input Power Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* |
14.99 W (Access) 5.78 W (HDD Hibernation) |
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| British Thermal Unit |
51.15 BTU/hr (Access) 19.72 BTU/hr (HDD Hibernation) |
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| Notes |
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Temperature |
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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 |
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Certification |
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Warranty |
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Warranty |
2 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
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Environment |
RoHS Compliant | |
Packaging Content |
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Packaging Content |
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Optional Accessories |
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Optional Accessories |
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DSM Specifications |
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Storage Management |
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Storage Management |
Maximum Internal Volume Number | 64 |
| SSD TRIM | ||
| Supported RAID Type |
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| RAID Migration | Basic to RAID 1 | |
| Volume Expansion with Larger HDDs |
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| Volume Expansion by Adding a HDD | Synology Hybrid RAID | |
File Services |
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File Services |
File Protocol | SMB/AFP/NFS/FTP/WebDAV |
| Maximum Concurrent SMB/AFP/FTP Connections | 200 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
| Notes | 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. | |
Account & Shared Folder |
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Account & Shared Folder |
Maximum Local User Accounts | 2,048 |
| Maximum Local Groups | 256 | |
| Maximum Shared Folder | 256 | |
| Maximum Shared Folder Sync Tasks | 4 | |
Log Center |
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Log Center |
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| Syslog Events per Second | 400 | |
General Specifications |
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General Specifications |
Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
| Supported Browsers |
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| 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 | |
Add-on Packages view the complete package list |
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Synology Chat |
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Synology Chat |
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| Maximum Users | 500 | |
| Notes | The number of concurrent HTTP connections for Synology Chat was configured to the maximum. | |
Download Station |
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Download Station |
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| Maximum Concurrent Download Tasks | 80 | |
exFAT Access (Optional) |
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exFAT Access (Optional) |
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iSCSI Manager |
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iSCSI Manager |
Maximum iSCSI Target Number | 10 |
| Maximum iSCSI LUN | 10 | |
| iSCSI LUN Clone/Snapshot, Windows ODX | ||
Media Server |
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Media Server |
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| DLNA Compliance | ||
Moments |
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Moments |
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| Facial Recognition | ||
| Subject Recognition | ||
Snapshot Replication |
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Snapshot Replication |
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| Maximum Snapshots per Shared Folder | 256 | |
| Maximum of System Snapshots | 4,096 | |
Surveillance Station |
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Surveillance Station |
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| 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 (1920x1080) 200 FPS @ 3M (2048x1536) 150 FPS @ 5M (2591x1944) 110 FPS @ 4K (3840x2160) |
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| Total FPS (H.265) |
600 FPS @ 720p (1280x720) 300 FPS @ 1080p (1920x1080) 240 FPS @ 3M (2048x1536) 200 FPS @ 5M (2591x1944) 180 FPS @ 4K (3840x2160) |
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| Total FPS (MJPEG) |
240 FPS @ 720p (1280x720) 200 FPS @ 1080p (1920x1080) 130 FPS @ 3M (2048x1536) 80 FPS @ 5M (2591x1944) |
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| Notes |
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Synology Drive |
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Synology Drive |
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| Recommended Number of Hosted Files | 100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | |
| Recommended Number of Concurrent Sync Clients | 200 (the number of connections that can be maintained when the recommended number of hosted files was reached) | |
| Notes |
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Synology Office |
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Synology Office |
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| Maximum Users | 200 | |
| Notes |
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Video Station |
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Video Station |
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| 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)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1 |
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VPN Server |
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VPN Server |
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| Maximum Connections | 20 | |
Notes:
