DiskStation DS218+
All-around storage solution optimized to safeguard your data

Features:

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.

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 all 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 makes data recovery fast and flexible
• Automatic file self-healing detects and recovers corrupted files without user intervention

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.

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.

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

Product Views:

Technical Specifications:

1. Status indicator
2. LAN indicator
3. Drive status indicator
4. USB 3.0 port
5. USB copy button
6. Power button and indicator
7. Fan
8. USB 3.0 port
9. Reset button
10. eSATA port
11. 1GbE RJ-45 port
12. Kensington Security Slot
13. Power port

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
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 Bay(s)	2
Compatible Drive Type	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD
Maximum Internal Raw Capacity	20 TB (10 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. 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 Port	1
USB 3.0 Port	3
eSATA Port	1
USBCopy
File System
Internal Drives	Btrfs EXT4
External Drives	Btrfs 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 232.2 mm
Weight	1.30 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	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
Other
Certification	FCC Class B CE Class B BSMI Class B
Warranty	3 Years Hardware Warranty
Notes	Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
General DSM Specifications:
Networking protocol	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN , L2TP)
File system	Internal: Btrfs, ext4 External: Btrfs, ext4, ext3, FAT, NTFS, HFS+, exFAT3
Supported RAID type	Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1
Storage management	Maximum internal volume: 256 Maximum iSCSI target: 32 Maximum iSCSI LUN: 256 iSCSI LUN clone/snapshot support
File sharing capability	Maximum user account: 2048 Maximum group: 256 Maximum shared folder: 256 Maximum concurrent SMB/NFS/AFP/FTP connection: 500
Privilege	Windows Access Control List (ACL), application privilege
Virtualization	VMware vSphere 6, Microsoft Hyper-V, Citrix, OpenStack
Directory service	Windows AD Integration: Domain Users login via Samba (CIFS)/AFP/FTP/File Station, LDAP integration
Security	Firewall, Encryption shared folder, SMB encryption, FTP over SSL/TLS, SFTP, Rsync over SSH, Login auto block, Let's Encrypt support, HTTPS (customizable cipher suite)
Supported client	Windows 7 and 10, Mac OS X 10.11 onwards
Supported browser	Chrome, Firefox, Internet Explorer: 10 onwards, Safari 10 onwards, Safari (iOS 10 onwards on iPad), Chrome (Android 6.0 onwards on tablets)
Language	English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český
Packages and Applications:
File Station	Virtual drive, remote folder, Windows ACL editor, compress/extract archived files, bandwidth control for specific users or groups, create sharing links, transfer logs
FTP Server	Bandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocols, boot over the network with TFTP and PXE support, transfer logs
Universal Search	Offer global search into applications and files
Hyper Backup	Support local backup, network backup, and backup data to public clouds
Active Backup for Server	Centralize data backup for Windows and Linux servers without client installation
Backup tool	DSM configuration backup, macOS Time Machine support, Cloud Station Backup Shared folder sync - maximum task number: 4
Cloud Station Suite	Sync your data between multiple platforms by installing client utilities on Windows, Mac, Linux, Android, and iOS devices, while retaining up to 32 historical versions of files Maximum concurrent file transfer: 500
Cloud Sync	One or two-way synchronization with public cloud storage providers including Amazon Drive, Amazon S3-compatible storage, Baidu cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, WebDAV servers, and Yandex Disk
Surveillance Station	Maximum IP camera: 25 (total of 750 FPS at 720p, H.264) (includes two free camera licenses; additional cameras require the purchasing of additional licenses)
Virtual Machine Manager	Deploy and run various virtual machines on Synology NAS, including Windows, Linux, or Virtual DSM
Snapshot Replication	Maximum of replications: 64 Maximum of shared folder snapshots: 1,024 Maximum of system snapshots: 65,536
Active Directory Server	Provide a flexible and cost-effective domain controller solution
CMS	Provide a single interface to manage and monitor multiple Synology NAS
VPN Server	Maximum connection: 20, supported VPN protocol: PPTP, OpenVPN, L2TP/IPSec
MailPlus	Intuitive webmail interface for MailPlus Server, customizable mail labels, filters, and user interface
MailPlus Server	Secure, reliable, and private mail solution with high-availability, load balancing, security and filtering design (includes 5 free email account licenses; additional accounts require the purchasing of additional licenses)
Collaboration Suite	Chat maximum user: 1,000 Office maximum user: 200, maximum simultaneous editing user: 60 Calendar: Support CalDAV and access via mobile devices
Note Station	Rich-text note organization with versioning, encryption, sharing, media embedding and attachments
Storage Analyzer	Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, largest/most/least frequently modified files
Security Advisor	Malware detection/removal, user account/password, network, system-related security scan
Antivirus Essential	Full system scan, scheduled scan, white list customization, virus definition auto update
Download Station	Supported download protocols: BT, HTTP, FTP, NZB, eMule, Thunder, FlashGet, QQDL Maximum concurrent download task: 80
Web Station	Virtual host (up to 30 websites), PHP / MariaDB, third-party applications support
Other packages	Video Station, Photo Station, Audio Station, DNS Server, RADIUS Server, iTunes Server, Log Center, third-party packages available on Package Center
iOS/Android applications	DS audio, DS cam, DS cloud, DS file, DS finder, DS get, DS note, DS photo, DS video, MailPlus
Windows Phone applications	DS audio, DS file, DS finder, DS get, DS photo, DS video
Environment & Packaging:
Environment	RoHS Compliant
Packaging Content	DS218+ main unit x 1 Quick Installation Guide x 1 Accessory pack x 1 AC power adapter x 1 RJ-45 LAN cable x 2
Optional Accessories	D3NS1866L-4G Synology VS360HD Surveillance Device License Pack MailPlus License Pack

*Model specifications are subject to change without notice. Please refer to www.synology.com for the latest information.
¹ Performance figures may vary depending on environment, usage, and configuration.
² DS218+ can transcode 4K video to 1080p or lower. The maximum number of concurrent video transcoding channels supported may vary depending on the video codec, resolution, bitrate and FPS.
³ exFAT Access is purchased separately in Package Center.

Performance:

2-bay NAS

Synology strives to enhance the performance of our NAS with every software update, even long after a product is launched. For enterprises and users that demand uncompromising performance from their servers, check the figures below to find the most suitable choice.

1GbE SMB - Sequential Throughput (64KB)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
Read	221.65	226.22	113.11	113.02	112.83	113.11	101.8
Write	171.6	188.27	112.62	108.54	112.1	112.35	64.1

1GbE SMB - Sequential Throughput via Encrypted Shared Folder (64KB)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
Read	118.64	226.13	113.11	112.35	112.69	105.67	30.21
Write	64.64	184.7	112.04	69.97	112.93	58.93	12.6

1GbE SMB - Windows File Transfer (3GB file x 1)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
Windows Download	111.89	112.36	112.77	111.47	112.23	111.95	96.33
Windows Download	111.32	111.83	111.55	110.67	110.78	109.31	59.37

1GbE SMB - Windows File Transfer (1MB file x 3000)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
Windows Download	82.04	85.53	84.53	82.11	82.81	80.28	5.62
Windows Download	58.54	68.21	68.39	59.47	63.9	57.82	32.27

1GbE SM - Windows File Transfer via Encrypted Shared Folder (3GB file x 1)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
Windows Download	49.94	112.27	112.63	51.05	112.29	48.9	24.59
Windows Download	35.52	104.67	110.94	35.91	111.15	33.07	12.3

1GbE SMB - Windows File Transfer via Encrypted Shared Folder (1MB file x 3000)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
Windows Download	40.53	85.27	83.43	40.9	57.03	39.1	20.94
Windows Download	21.9	41.87	42.59	22.24	43.5	20.8	8.14

1GbE AFP - Mac File Transfer (3GB file x 1)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
AFP Download	94.46	93.5	94.25	93.96	94.44	93.01	84.35
AFP Upload	94.09	92.49	92.9	93.19	93.55	90.19	57.05

1GbE AFP - Mac File Transfer (1MB file x 3000)

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
AFP Download	50.25	68.68	69.81	50.26	51.73	50.08	42.2
AFP Upload	57.99	64.4	57.13	57.43	60.89	55.31	33.66

1GbE Web Server - PHP Response Efficiency

Model	RS217	DS718+	DS218+	DS216	DS218play	DS218j	DS216se
Responses per second	4502.74	13329.55	8763.35	4481.41	8920.13	4632.2	765.5

NAS:

• Operating System: DSM 6.1
• Volume Type: RAID 5 (4 bay), RAID 1 (2 bay), Basic (1 bay)
• Drives:
  • DS416slim: Fully loaded with Intel 535 Series 240GB SSDSC2BW240H6 SSD
  • Other models: Fully loaded with Seagate ST6000VN0001 6TB HDD
• File System:
  • EXT4:
    • [1-bay] DS118, DS115j
    • [2-bay] RS217, DS216, DS218play, DS218j, DS216se
    • [4-bay] RS816, DS418, DS418j, DS416slim
  • Btrfs:
    • [2-bay] DS718+, DS218+
    • [4-bay] RS815(RP)+, DS918+, DS418play
• 1GbE Network Environments:
  • For models with single 1GbE LAN port: MTU 1500; connected to 1 client PC via HP 2530-48G switch
  • For models with multiple 1GbE LAN ports: Link Aggregation is enabled for Sequential Throughput tests; MTU 1500; connected to client PCs via HP 2530-48G switch

Client PC:

• 1GbE SMB Network Environments:
  • For NAS models with single 1GbE LAN port: Intel Core i7-3770 3.40GHz; 32GB DDR3-1866; RAMdisk with 14GB source partition and 14GB target partition; Intel Gigabit CT; MTU 1500; Windows 7 64-bit
  • For NAS models with multiple 1GbE LAN ports: Intel Core i7-3770 3.40GHz; 4GB DDR3-1600; Intel 520 (120GB) SSD x 2; striped volume; Intel Gigabit CT; MTU 1500; Windows 7 64-bit
• IOMeter setting for Sequential Throughput tests: Continuously read from/write to a single 8GB file for 3 minutes; Block size: 64KB
• 1GbE Web Server Network Environment:
  • Intel Core i7-6700 3.40GHz; 16GB DDR4-2133; Intel Gigabit CT; MTU 1500; Ubuntu 16.04
  • (php) wrk -t 8 -c [10-250] -d 60s -H "Host: benchmark"http://DS_IP/echo.php
• 1GbE AFP Network Environment: Mac Mini; 2.3GHz 4 core Intel Core i7; 16GB DDR3-1600; RAMdisk with 7GB source partition and 4GB target partition; MTU 1500; OSX 10.9

Special Note:

• Performance figures are achieved in the Synology lab by using very powerful client computers with optimized network settings, and could vary in different environments. Regular office desktop or notebook computers may not be able to reproduce these figures.

Documentation:

Download the Synology DiskStation DS218+ Datasheet  (PDF).