Synology DiskStation DS718+

Flexible scalability meeting growing needs

Powered by a quad-core processor and AES-NI hardware encryption engine, DS718+ delivers excellent file transfer speeds. With the scalability to expand up to 7 drives with Synology Expansion Unit DX517 and the Flexible scalability meeting growing needs

Powered by a quad-core processor and AES-NI hardware encryption engine, DS718+ delivers excellent file transfer speeds. With the scalability to expand up to 7 drives with Synology Expansion Unit DX517 and the support for real-time 4K/1080p video transcoding, DS718+ is ideal for centralizing data backup and storing ultra-high definition media contents.

CPU

Quad-core burst up to 2.3GHz

RAM options

DDR3L 2GB, up to 6GB

Encryption Performance

Up to 226 MB/s reading and 184 MB/s writing

Transcoding 2-channel 4K H.264/H.265 video transcoding

Hardware Specifications

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)

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 2 GB (2 GB x 1)

Total Memory Slots 2

Memory Expandable up to 6 GB (2 GB + 4 GB)

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.

Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.

Storage

Drive Bays 2

Maximum Drive Bays with Expansion Unit 7

Compatible Drive Type* (See all supported drives) 3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD

Maximum Internal Raw Capacity 28 TB (14 TB drive x 2) (Capacity may vary by RAID types)

Maximum Raw Capacity with Expansion Units 98 TB (28 TB + 14 TB drive x 5) (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. (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 3 eSATA Port 1

Copy Button

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) 157 mm x 103.5 mm x 232 mm

Weight 1.74 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* 18.4 dB(A)

Scheduled Power On/Off

Wake on LAN/WAN

Power Supply Unit / Adapter 65W

AC Input Power Voltage 100V to 240V AC

Power Frequency 50/60 Hz, Single Phase

Power Consumption* 20.1 W (Access) 9.1 W (HDD Hibernation)

British Thermal Unit 68.58 BTU/hr (Access) 31.05 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

EAC

VCCI

CCC

RCM

KC

FCC

CE

BSMI

Warranty 3-year hardware warranty, extendable to 5-year coverage - EW201

Notes

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

Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75°C; Humidity: 58.2-61.8%

The warranty period starts from the purchase date as stated on your purchase receipt.

DSM Specifications

Storage Management

Maximum Internal Volume Number 512

Maximum iSCSI Target Number 128

Maximum iSCSI LUN 256 iSCSI LUN Clone/Snapshot, Windows ODX

SSD Read/Write Cache (White Paper)

SSD TRIM

Supported RAID Type

Synology Hybrid RAID

Basic

JBOD

RAID 0

RAID 1

RAID 5 (with Expansion Unit)

RAID 6 (with Expansion Unit)

RAID 10 (with Expansion Unit)

RAID Migration

Basic to RAID 1

Basic to RAID 5 (with Expansion Unit)

RAID 1 to RAID 5 (with Expansion Unit)

RAID 5 to RAID 6 (with Expansion Unit)

Volume Expansion with Larger HDDs

Synology Hybrid RAID

RAID 1

RAID 5 (with Expansion Unit)

RAID 6 (with Expansion Unit)

RAID 10 (with Expansion Unit)

Volume Expansion by Adding a HDD

Synology Hybrid RAID

JBOD (with Expansion Unit)

RAID 5 (with Expansion Unit)

RAID 6 (with Expansion Unit)

Global Hot Spare Supported RAID Type

Synology Hybrid RAID

RAID 1 (with Expansion Unit)

RAID 5 (with Expansion Unit)

RAID 6 (with Expansion Unit)

RAID 10 (with Expansion Unit)

File Services

File Protocol CIFS/AFP/NFS/FTP/WebDAV

Maximum Concurrent CIFS/AFP/FTP Connections 500

Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 1500

Windows Access Control List (ACL) Integration

NFS Kerberos Authentication

Account & Shared Folder

Maximum Local User Accounts 2048

Maximum Local Groups 256

Maximum Shared Folder 512

Maximum Shared Folder Sync Tasks 8

High Availability Manager

Log Center

Syslog Events per Second 800

Virtualization

VMware vSphere 6 with VAAI

Windows Server 2012

Windows Server 2012 R2

Windows Server 2016

Citrix Ready

OpenStack

Add-on Packages (learn more about the complete add-on package list)

Antivirus by McAfee (Trial)

Central Management System

Chat

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

Recommended Number of Hosted Files 1,000,000

Recommended Number of Concurrent Sync Clients 500

Notes

The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.

The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.

Non-encrypted shared folders were used during the aforementioned testing.

Document Viewer

Download Station

Maximum Concurrent Download Tasks 80 exFAT Access (optional)

MailPlus / MailPlus Server

Free Email Accounts 5 (Licenses required for additional accounts)

Maximum number of concurrent users Up to 100

Maximum Server Performance 1,052,000 emails