Overview

Features

High-speed scalable storage server

Synology DS918+ is designed for small and medium-sized businesses and IT enthusiasts. With a powerful built-in AES-NI hardware encryption engine, DS918+ provides exceptional encrypted file transmission. Also capable of transcoding up to two channels of H.265/H.264 4K videos at the same time, DS918+ is ideal for sharing and storing ultra-high definition media content.

CPU

Quad-core 1.5GHz burst up to 2.3GHz

Network

Dual 1GbE LAN ports

Memory

4GB DDR3L, scalable up to 8GB

Performance

Over 225 MB/s and 221 MB/s encrypted sequential reading and writing

Satisfy your need for performance and capacity

DS918+ supports up to two M.2 NVMe 2280 SSDs,allowing fast system cache creation without occupying internal drive bays. Scalable up to 9 drives with a Synology Expansion Unit DX517, DS918+ answers the need for flexible storage capacity.

Btrfs: Next generation storage efficiency

Btrfs file system introduces the most advanced storage technologies to meet the management needs of modern large scale businesses:

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

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.

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.

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.

  • Cloud Station Sharesync

  • Cloud Station Drive

  • Cloud Station Serve

  • DS Cloud


4K Multimedia Server

Access and stream your 4K media content anytime and anywhere. DS918+ 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.

Powered by Synology DSM

  • Surveillance Station - Complete surveillance solution for recording, monitoring, and management.
  • Collaboration Suite - Synology Office, Calendar and Chat guarantee a secure and high-performance private communication and user-friendly content organization.
  • All-in-one server - Save additional investment by integrating various network services, web/mail services, management applications into your NAS.
  • 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.
  • Security - Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.

  1. Status indicator
  2. Drive status indicator
  3. Drive tray lock
  4. USB 3.0 port
  5. Power button and indicator
  6. Drive tray
  7. 1GbE RJ-45 port
  8. Reset button
  9. eSATA port
  10. Power port
  11. Fan
  12. Kensington Security Slot
  13. USB 3.0 port
  14. M.2 NVMe SSD slot (bottom side)

Specifications

Hardware

CPU

CPU Model

Intel Celeron J3455

CPU Architecture

64-bit

CPU Frequency

Quad Core 1.5 burst up to 2.3 GHz

Hardware Encryption Engine (AES-NI)

Yes

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

4 GB DDR3L

Memory Module Pre-installed

4GB (1 x 4GB)

Total Memory Slots

2

Memory Expandable up to

8 GB (4 GB x 2)

Storage

Drive Bays

4

Maximum Drive Bays with Expansion Unit

9

M.2 Drive Slots

2

Compatible Drive Type

3.5" SATA HDD

2.5" SATA HDD

2.5" SATA SSD

M.2 NVMe 2280 SSD

Maximum Internal Raw Capacity

40 TB (10 TB drive x 4) (Capacity may vary by RAID types)

Maximum Raw Capacity with Expansion Units

90 TB (10 TB drive x 9) (Capacity may vary by RAID types)

Maximum Single Volume Size

108 TB

Hot Swappable Drive

Yes

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 Port

2 (with Link Aggregation / Failover support)

USB 3.0 Port

2

eSATA Port

1

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)

166 mm x 199 mm x 223 mm 

Weight

2.28 kg 

Others

System Fan

92 mm x 92 mm x 2 pcs

Fan Speed Mode

Full-Speed Mode

Cool Mode

Quiet Mode

Brightness adjustable front LED indicators

Yes

Power Recovery

Yes

Noise Level*

19.8 dB(A) 

Scheduled Power On/Off

Yes

Wake on LAN/WAN

Yes

Power Supply Unit / Adapter

100W 

AC Input Power Voltage

100V to 240V AC

Power Frequency

50/60 Hz, Single Phase

Power Consumption*

28.8 W (Access) 

12.6 W (HDD Hibernation) 

British Thermal Unit

98.27 BTU/hr (Access) 

42.99 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

FCC Class B

CE Class B

BSMI Class B

Warranty

3 Years

Notes

Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).

Storage Management

Maximum Internal Volume Number

512

Maximum iSCSI Target Number

32

Maximum iSCSI LUN

256

iSCSI LUN Clone/Snapshot, Windows ODX

Yes

Supported RAID Type

Synology Hybrid RAID

Basic

JBOD

RAID 0

RAID 1

RAID 5

RAID 6

RAID 10

RAID Migration

Basic to RAID 1

Basic to RAID 5

RAID 1 to RAID 5

RAID 5 to RAID 6

Volume Expansion with Larger HDDs

Synology Hybrid RAID

RAID 1

RAID 5

RAID 6

Volume Expansion by Adding a HDD

Synology Hybrid RAID

RAID 5

JBOD

RAID 6 (with Expansion Unit)

Global Hot Spare Supported RAID Type

Synology Hybrid RAID

RAID 1

RAID 5

RAID 6 (with Expansion Unit)

RAID 10 (with Expansion Unit)

SSD Support

SSD Read/Write Cache (White Paper)

Yes

SSD TRIM

Yes

File Sharing Capacity

Maximum Local User Accounts

2048

Maximum Local Groups

256

Maximum Shared Folder

512

Maximum Shared Folder Sync Tasks

8

Maximum Concurrent CIFS/AFP/FTP Connections

1000

Windows Access Control List (ACL) Integration

Yes

NFS Kerberos Authentication

Yes

High Availability Manager

Log Center

Syslog Events per Second

800

Virtualization

VMware vSphere 6 with VAAI

Yes

Windows Server 2012

Yes

Windows Server 2012 R2

Yes

Citrix Ready

Yes

OpenStack

Yes


Antivirus by McAfee (Trial)


Yes

Central Management System

Yes

Chat

Yes

Maximum Users

1500

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

Yes

Maximum Number of Concurrently Connected Devices

1000

Maximum Number of Concurrently Connected Devices (with RAM expansion)

2000

Maximum Number of Synced Files (btrfs)

1,000,000 / single file reaction time 744 ms

Maximum Number of Synced Files (ext4)

1,000,000 / single file reaction time 630 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.

Document Viewer

Yes

Download Station

Yes

Maximum Concurrent Download Tasks

80

exFAT Access (optional)

Yes

MailPlus / MailPlus Server

Yes

Free Email Accounts

5 (Licenses required for additional accounts)

Recommended MailPlus Client Number

Up to 90 (Btrfs) / 90 (ext4)

Maximum Server Performance

840,000 (Btrfs) / 1,014,000 (ext4) emails per day, approx. 25.6 GB (Btrfs) / 30.9 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

Yes

DLNA Compliance

Yes

Office

Maximum Users

200

Maximum Simultaneous Editing Users

80

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

Yes

Maximum Snapshots per Shared Folder

1024

Maximum Snapshots of all Shared Folder

65536

Surveillance Station

Maximum IP cam (Licenses required)

40 (including 2 Free License) (See All Supported IP Cameras)

Total FPS (H.264)*

1200 FPS @ 720p (1280x720) 

840 FPS @ 1080p (19201080) 

400 FPS @ 3M (2048x1536) 

300 FPS @ 5M (2591x1944) 

180 FPS @ 4K (3840x2160)

Total FPS (MJPEG)*

480 FPS @ 720p (1280x720) 

400 FPS @ 1080p (19201080) 

330 FPS @ 3M (2048x1536) 

200 FPS @ 5M (2591x1944)

Total FPS (H.265)*

1200 FPS @ 720p (1280x720) 

1200 FPS @ 1080p (19201080) 

600 FPS @ 3M (2048x1536) 

400 FPS @ 5M (2591x1944) 

300 FPS @ 4K (3840x2160)

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

Yes

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 (19201080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1

VPN Server

Yes

Maximum Connections

20


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 2

Quick Installation Guide X 1

Optional Accessories

Surveillance Device License Pack

D3NS1866L-4G RAM Module

Expansion Unit: DX517 X 1

VS360HD

VS960HD

No additional files, specification sheets, guides or documentation found for product.

Flexirent

You can finance this product via Flexirent! For more information regarding flexirent, and to use the flexirent finance calculator, please click here.

The calculator provides an indicative rental cost only. Flexirent prices quoted include GST and stamp duty. Subject to credit approval. To obtain full quote and pre-approval please contact Flexirent Customer Service on 1800 240 102. Rental is payable monthly.

Warranty: 36 Month Manufacturers Return To Base

Full manufacturers warranty details are available at the manufacturers (Synology) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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