Synology DS218+ Diskstation 2-Bay NAS

 
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DS218+
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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.

Learn more


Surveillance Station

Complete surveillance solution for recording, monitoring, and management.

Learn more


File Server/Management

Powerful built-in file management and sharing services.

Learn more


DSM UI

Award-winning operating system with an intuitive user interface and powerful capabilities.

Learn more


Desktop Backup

Simplified backup solution for your Mac, PC, and mobile devices.

Learn more


Multimedia

Complete multimedia solution for management, streaming, and playback.

Learn more

Hardware Specifications
CPU
CPU ModelIntel Celeron J3355
CPU Architecture64-bit
CPU FrequencyDual Core 2.0 burst up to 2.5 GHz
Hardware Encryption Engine (AES-NI)
Hardware Transcoding EngineH.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 Memory2 GB DDR3L
Memory Module Pre-installed2GB (1 x 2GB)
Total Memory Slots2
Memory Expandable up to6 GB (2 GB + 4 GB)
Storage
Drive Bays2
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Maximum Internal Raw Capacity24 TB (12 TB drive x 2) (Capacity may vary by RAID types)
Maximum Single Volume Size108 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)
  • Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB.
External Ports
RJ-45 1GbE LAN Port1
USB 3.0 Port3
eSATA Port1
USBCopy
File System
Internal Drives
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
NotesexFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth)165 mm x 108 mm x 232.2 mm 
Weight1.30 kg 
Others
System Fan92 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 / Adapter60W 
AC Input Power Voltage100V to 240V AC
Power Frequency50/60 Hz, Single Phase
Power Consumption*17.23 W (Access)  5.4 W (HDD Hibernation) 
British Thermal Unit58.79 BTU/hr (Access)  18.43 BTU/hr (HDD Hibernation) 
Environment Temperature
Operating Temperature5°C to 40°C (40°F to 104°F)
Storage Temperature-20°C to 60°C (-5°F to 140°F)
Relative Humidity5% to 95% RH
Certification
  • FCC Class B
  • CE Class B
  • BSMI Class B
Warranty2 Years
NotesPower consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
DSM Specifications ( See more )
Storage Management
Maximum Internal Volume Number256
Maximum iSCSI Target Number32
Maximum iSCSI LUN256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD TRIM
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
RAID MigrationBasic to RAID 1
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
Volume Expansion by Adding a HDDSynology Hybrid RAID
File Sharing Capacity
Maximum Local User Accounts2048
Maximum Local Groups256
Maximum Shared Folder256
Maximum Shared Folder Sync Tasks4
Maximum Concurrent CIFS/AFP/FTP Connections500
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Log Center
Syslog Events per Second400
Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)
Central Management System
Chat
Maximum Users1000
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.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Maximum Number of Concurrently Connected Devices500
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
  • 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.
Virtual Machine Manager
Maximum Virtual DSM Number (Licenses required)2 (including 1 Free License) (Learn more)
Document Viewer
Download Station
Maximum Concurrent Download Tasks80
exFAT Access (optional)
MailPlus / MailPlus Server
Free Email Accounts(Licenses required for additional accounts)
Recommended MailPlus Client NumberUp to 45 (Btrfs) / 45 (ext4)
Maximum Server Performance181,000 (Btrfs) / 194,000 (ext4) emails per day, approx. 5.5 GB (Btrfs) / 5.9 GB (ext4)
Notes
  • The CPU and RAM usages were both under 80% when testing recommended client numbers.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DLNA Compliance
Office
Maximum Users200
Maximum Simultaneous Editing Users60
Notes
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Snapshot Replication
Maximum Snapshots per Shared Folder1024
Maximum Snapshots of all Shared Folder65536
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)
NotesSurveillance 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 Transcoding4K Group 1 (See more)
Maximum Transcoding Channel Number2 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 Connections20
Environment & Packaging
EnvironmentRoHS 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
  • D3NS1866L-4G RAM Module
  • VS360HD
  • VS960HD


  • 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
The manufacture company:
Synology
Product Specification
Input Power:
  • 100V to 240V AC
نوى المعالج:
Dual Core 2.0 burst up to 2.5 GHz
CPU:
  • Intel Celeron J3355
MEMORY:
  • 2 GB DDR3L
Memory Specification :
2GB (1 x 2GB)
Ports:
  • eSATA Port 1
  • RJ-45 1GbE LAN Port
  • USB 3.0 Port 3
Form Factor:
Drive Bays 2
Power Supply:
  • Power Supply Unit / Adapter: 60W
Dimension:
  • 165 mm x 108 mm x 232.2 mm
الوزن:
  • 1.30 kg
Max. Power Consumption:
  • 17.23 W
Operating Temperature:
  • -20°C to 60°C (-5°F to 140°F)
  • 5°C to 40°C (40°F to 104°F)

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