Synology DS218+ Diskstation 2-Bay NAS
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Compact yet powerful storage solution
Equipped with a dual-core processor and AES-NI hardware encryption engine, DS218+ delivers exceptional file transfer speeds. Supporting real-time 4K video streaming, DS218+ is ideal not only for protecting critical data but for storing ultra-high definition media contents as well.
CPU
Dual-core up to 2.5 GHz
Ultra Performance
113 MB/s encrypted reading, 112 MB/s encrypted writing
Encryption
AES-NI hardware encryption
Transcoding
4K Ultra HD video transcoding
Next-generation file system for better data protection
The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools.
Flexible Shared Folder / User Quota System provides comprehensive quota control on user accounts and shared folders
Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots
File- or folder-level data restoration accelerates data recovery, providing more flexibility for businesses
Automatic file self-healing detects and recovers corrupted files without user intervention
Learn more about the benefits of using Btrfs
4K Multimedia Server
Access and stream your 4K media content anytime and anywhere. DS218+ supports 4K H.264/H.265 online transcoding via Video Station and DS video, allowing 4K videos to be converted and played on the fly on other computers, smartphones, and media players that originally do not support Ultra HD formats. Learn more
4K Multimedia Server
Access and stream your 4K media content anytime and anywhere. DS218+ supports 4K H.264/H.265 online transcoding via Video Station and DS video, allowing 4K videos to be converted and played on the fly on other computers, smartphones, and media players that originally do not support Ultra HD formats. 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
Cloud Station Sharesync
Cloud Station Drive
Cloud Station Server
DS Cloud
Digital asset protection
Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes. Learn more
Security Advisor
Analyzes system settings, password strength, network preferences, and removes any possible malware.
AppArmor
A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.
AES 256-bit encryption
Encrypt shared folders and network data transmission to keep data from unauthorized access.
2-step verification
Prevent others from logging in to your DSM by generating a one-time password (OTP) on your mobile device.
Trust Level
Customize the trust level in Package Center to avoid installing packages from untrusted sources, safeguarding your NAS from unknown or tampered package files.
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 simple customizable address (e.g. https://customID.quickconnect.to), so that you can instantly access media and work files on any Windows/Mac/Linux computer, laptop, or mobile device without additional charge.
Powered by Synology DSM
Office
Collaborate on spreadsheets and documents on your private cloud.
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.
File Server/Management
Powerful built-in file management and sharing services.
DSM UI
Award-winning operating system with an intuitive user interface and powerful capabilities.
Desktop Backup
Simplified backup solution for your Mac, PC, and mobile devices.
Multimedia
Complete multimedia solution for management, streaming, and playback.
| Hardware Specifications | |
| CPU | |
| CPU Model | Intel Celeron J3355 |
| CPU Architecture | 64-bit |
| CPU Frequency | Dual Core 2.0 burst up to 2.5 GHz |
| Hardware Encryption Engine (AES-NI) | |
| Hardware Transcoding Engine | H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30 |
| Memory | |
| System Memory | 2 GB DDR3L |
| Memory Module Pre-installed | 2GB (1 x 2GB) |
| Total Memory Slots | 2 |
| Memory Expandable up to | 6 GB (2 GB + 4 GB) |
| Storage | |
| Drive Bays | 2 |
| Compatible Drive Type* (See all supported drives) |
|
| 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 |
|
| External Ports | |
| RJ-45 1GbE LAN Port | 1 |
| USB 3.0 Port | 3 |
| eSATA Port | 1 |
| USBCopy | |
| File System | |
| Internal Drives |
|
| External Drives |
|
| Notes | exFAT Access is purchased separately in Package Center. |
| Appearance | |
| Size (Height x Width x Depth) | 165 mm x 108 mm x 232.2 mm |
| Weight | 1.30 kg |
| Others | |
| System Fan | 92 mm x 92 mm x 1 pcs |
| Fan Speed 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* | 17.23 W (Access) 5.4 W (HDD Hibernation) |
| British Thermal Unit | 58.79 BTU/hr (Access) 18.43 BTU/hr (HDD Hibernation) |
| Environment 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 |
| Certification |
|
| 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 | 32 |
| Maximum iSCSI LUN | 256 |
| iSCSI LUN Clone/Snapshot, Windows ODX | |
| SSD TRIM | |
| Supported RAID Type |
|
| RAID Migration | Basic to RAID 1 |
| Volume Expansion with Larger HDDs |
|
| 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 | 4 |
| Maximum Concurrent CIFS/AFP/FTP Connections | 500 |
| Windows Access Control List (ACL) Integration | |
| NFS Kerberos Authentication | |
| Log Center | |
| Syslog Events per Second | 400 |
| Add-on Packages (learn more about the complete add-on package list) | |
| Antivirus by McAfee (Trial) | |
| Central Management System | |
| Chat | |
| Maximum Users | 1000 |
| Notes |
|
| Cloud Station Server | |
| Maximum Number of Concurrently Connected Devices | 500 |
| Maximum Number of Concurrently Connected Devices (with RAM expansion) | 1500 |
| Maximum Number of Synced Files (btrfs) | 1,000,000 / single file reaction time 681 ms |
| Maximum Number of Synced Files (ext4) | 1,000,000 / single file reaction time 341 ms |
| Notes |
|
| Virtual Machine Manager | |
| Maximum Virtual DSM Number (Licenses required) | 2 (including 1 Free License) (Learn more) |
| Document Viewer | |
| Download Station | |
| Maximum Concurrent Download Tasks | 80 |
| exFAT Access (optional) | |
| MailPlus / MailPlus Server | |
| Free Email Accounts | 5 (Licenses required for additional accounts) |
| Recommended MailPlus Client Number | Up to 45 (Btrfs) / 45 (ext4) |
| Maximum Server Performance | 181,000 (Btrfs) / 194,000 (ext4) emails per day, approx. 5.5 GB (Btrfs) / 5.9 GB (ext4) |
| Notes |
|
| Media Server | |
| DLNA Compliance | |
| Office | |
| Maximum Users | 200 |
| Maximum Simultaneous Editing Users | 60 |
| Notes |
|
| Snapshot Replication | |
| Maximum Snapshots per Shared Folder | 1024 |
| Maximum Snapshots of all Shared Folder | 65536 |
| Surveillance Station | |
| Maximum IP cam (Licenses required) | 25 (including 2 Free License) (See All Supported IP Cameras) |
| Total FPS (H.264)* | 750 FPS @ 720p (1280x720) 600 FPS @ 1080p (1920×1080) 350 FPS @ 3M (2048x1536) 250 FPS @ 5M (2591x1944) 120 FPS @ 4K (3840x2160) |
| Total FPS (H.265)* | 750 FPS @ 720p (1280x720) 750 FPS @ 1080p (1920×1080) 450 FPS @ 3M (2048x1536) 250 FPS @ 5M (2591x1944) 200 FPS @ 4K (3840x2160) |
| Total FPS (MJPEG)* | 450 FPS @ 720p (1280x720) 250 FPS @ 1080p (1920×1080) 160 FPS @ 3M (2048x1536) 130 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 1 (See more) |
| Maximum Transcoding Channel Number | 2 channel, 30 FPS @ 4K (4096 x 2160), H.264 (AVC)/H.265 (HEVC) or 2 channel, 30 FPS @ 1080p (1920×1080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1 |
| VPN Server | |
| Maximum Connections | 20 |
| Environment & Packaging | |
| Environment | RoHS Compliant |
| Packaging Content |
|
| Optional Accessories |
|
- 1Status indicator
- 2LAN indicator
- 3Drive status indicator
- 4USB 3.0 port
- 5USB copy button
- 6Power button and indicator
- 7Fan
- 8USB 3.0 port
- 9Reset button
- 10eSATA port
- 111GbE RJ-45 port
- 12Kensington Security Slot
- 13Power port
- 100V to 240V AC
- eSATA Port 1 ,
- RJ-45 1GbE LAN Port ,
- USB 3.0 Port 3
- 165 mm x 108 mm x 232.2 mm
- 1.30 kg
- 17.23 W
- -20°C to 60°C (-5°F to 140°F) ,
- 5°C to 40°C (40°F to 104°F)
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