Synology DiskStation DS918 Network Attached Storage

CPU Model Intel Celeron J3455

CPU Architecture 64-bit

CPU Frequency Quad Core 1.5 (base) / 2.3 (burst) 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

System Memory 4 GB DDR3L

Memory Module Pre-installed 4 GB (4 GB x 1)

Total Memory Slots 2

Memory Expandable up to 8 GB (4 GB x 2)

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.

Drive Bays 4

Maximum Drive Bays with Expansion Unit 9

M.2 Drive Slots 2 (NVMe)

Compatible Drive Type* (See all supported drives)

3.5" SATA HDD

2.5" SATA HDD

2.5" SATA SSD

M.2 2280 NVMe SSD

Maximum Internal Raw Capacity 64 TB (16 TB drive x 4) (Capacity may vary by RAID types)

Maximum Raw Capacity with Expansion Units 144 TB (64 TB + 16 TB drive x 5) (Capacity may vary by RAID types)

Maximum Single Volume Size* 108 TB

Hot Swappable Drive yes

Notes

"Compatible drive type" indicates 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 raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)

Each internal volume (may consist of multiple drives) is expandable up to 108TB.

RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support)

USB 3.0 Port 2

eSATA Port 1

File System

Btrfs

EXT4

Btrfs

EXT4

EXT3

FAT

NTFS

HFS+

exFAT*

Notes exFAT Access is purchased separately in Package Center.

Size (Height x Width x Depth) 166 mm x 199 mm x 223 mm

Weight 2.28 kg

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

Noise Level* 19.8 dB(A)

Scheduled Power On / Off

Wake on LAN / WAN

Power Supply Unit / Adapter 100 W

AC Input Power Voltage 100 V to 240 V 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)

Notes

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

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

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

EAC

VCCI

CCC

RCM

KC

FCC

CE

BSMI

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

Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

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

D3NS1866L-4G DDR3 non-ECC SO-DIMM

Surveillance Device License Pack

Expansion Unit: DX517 X 1

VS360HD

VS960HD