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Synology DiskStation DS418j 4-Bay NAS Enclosure

CCL Code: NAS0291
Manufacturer Code: DS418J
Manufacturer: Synology
Synology DiskStation DS418j 4-Bay NAS Enclosure

Key Features:

  • Number of Bays: 4
  • Max Drive Capacity: 10TB
  • Max Total Capacity: 40TB
  • Accepts 2.5 & 3.5" Hard Drives
  • Desktop Form Factor


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Synology DiskStation DS418j is a 4-bay NAS server designed for home and personal users to effectively manage, protect and share data. Its new 64-bit dual-core processor provides large-capacity storage volume support for flexible data management. Synology DS418j is backed by Synology's 2-year limited warranty. Synology DS418j is a powerful entry-level 4-bay network attached storage solution equipped with a 64-bit dual-core 1.4 GHz processor and 1GB RAM, delivering sequential reading throughput at over 112 MB/s and writing throughput at over 108 MB/s, and an encrypted sequential data transmission at over 112 MB/s reading and 87 MB/s writing. The great combination of the 64-bit hardware and DiskStation Manager (DSM) allows DS418j to take advantage of large-capacity HDDs for flexible storage volume management as well as efficient file sharing and data backup. Synology DS418j supports comprehensive network protocols, ensuring a seamless file sharing experience across Windows, Mac, and Linux platforms. Windows AD and LDAP integration allows DS418j to fit quickly and effortlessly into any existing network environment without the necessity to recreate user accounts. Cloud Sync keeps your Dropbox, Google Drive, Microsoft OneDrive, Baidu Cloud, and Box storages in sync with your personal DiskStation at home. The Cloud Station Suite enables you to sync files among multiple devices - Windows PC, Mac, Linux, iOS or Android tablets/ phones - easily keeping everything up-to-date. All the seamless file sharing over the Internet is protected at a high security level with the HTTPS, firewall, and IP auto-block mechanisms supported by DS418j.

Main Features

  • Powerful entry-level 4-bay NAS for home and personal usage
  • 64-bit dual-core 1.4GHz processor
  • 1 GB DDR4 memory, twice the size of its predecessor
  • Over 112 MB/s sequential reading throughput and 108 MB/s sequential writing throughput
  • Over 112 MB/s encrypted sequential reading throughput and 87 MB/s encrypted sequential writing throughput
  • Over 40 TB raw single volume capacity
  • Supports up to 16 IP cameras
  • Brightness adjustable front LED indicators
  • Ports: 1 x 1GbE (RJ45), 2 x USB 3.0


Warranty Two years, limited.
Form Factor Desktop
Case Colour Black
Pack Quantity 1
In The Box DS418j main unit, Quick Installation Guide, Accessory pack, AC power adaptor and power cord, RJ-45 LAN cable
Width 18.4 cm
Depth 23.0 cm
Height 16.8 cm
Weight 2.21 kg
Security Locking Mechanics Kensington Security Slot
LED Status Indicators Brightness adjustable front LED indicators
Enclosure type Adapter


CPU Family Realtek RTD dual-core
Processor Number 1293
CPU Speed 1.4 GHz


Memory Size 1 MB


Hard Drive Interface SATA
Number of Hard Disks 0
RAID Support 0, 1, 5, 6, 10, JBOD
Number of Bays 4

Supported Formats

Supported File System Internal: ext4 • External: ext4, ext3, FAT, NTFS, HFS+, exFAT


USB Support USB3.0
USB 2.0/ USB3.0 No
RJ-45 Ports 1 x RJ-45

Network (Wired)

Network Connection 1GbE (RJ45)


Management Maximum internal volume: 256 • Maximum iSCSI target: 10 • Maximum iSCSI LUN: 10
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)
Backup Facilities Hyper Backup: Support local backup, network backup, and backup data to public clouds • Backup tool: DSM configuration backup, macOS Time Machine support, Cloud Station Backup Shared folder sync - maximum task number: 2
Software Included (may be trial or restricted) iOS/Android applications: DS audio, DS cam, DS cloud, DS file, DS finder, DS get, DS note, DS photo, DS video • Windows Phone applications: DS audio, DS file, DS finder, DS get, DS photo, DS video
Supported Web Browsers Chrome, Firefox, Internet Explorer 10 onwards, Safari 10 onwards; Safari (iOS 10 onwards), Chrome (Android 6.0 onwards)
Language Selection English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Cesk
File Sharing Maximum local user account: 1,024 • Maximum local group: 256 • Maximum shared folder: 256 • Maximum concurrent SMB/NFS/AFP/FTP connection: 100

System Requirements

Operating Systems Supported Windows 7 and 10, Mac OS X 10.11 onwards


Power Supply 90W
Electrical Voltage 100 to 240 V AC
Electrical Power Consumption 21.22 W
Electrical Frequency 50 to 60 Hz
Cooling System Full-Speed Mode • Cool Mode • Quiet Mode • Low-power Mode
Power Saving Capabilities Scheduled Power On/Off • Wake on LAN/WAN
System Fans 2 x (80mm x 80mm)


Operating Temperature 5 to 40 °C
Noise Level (full operating mode) 20.6 dbA
Relative Humidity 5 to 95 %
Altitude (Operating) 5000 m

Key Features

Total Bay Capacity (SATA) 40 TB
Disk Form Factor 2.5 & 3.5
PC Connection Type Ethernet 1Gbps
HDD Connection SATA III
Maximum Supported Drive Capacity 10 TB
Supports RAID 0 Yes
Supports RAID 1 Yes
Supports RAID 1+0 Yes
Supports RAID 5 Yes
Supports RAID 6 Yes
Supports JBOD Yes
NAS Hard Drive SetID 106

Item Details

Manufacturer Synology
Manufacturer Code DS418J
EAN 4711174722747
Condition New

Manufacturer Information

Manufacturer Synology
Manufacturer Code DS418J

Do you have you a question about the Synology DiskStation DS418j (0TB) 4-Bay Entry Level NAS Server?

Q: It shows USB ports on the pics of the device but has a red cross when it says USB support in the Specification, what exactly does that mean? I have a Seagate Maxtor external USB HDD, I'm wondering if I can I use that with it? It not, what can the USB ports shown in the pics of the product be used for?
Answer by Website User on 17th January 2020
I can confirm this has 2 x USB ports, I am not 100% what they are used for though. - Kristian N
0 customers found this answer helpful.
Post Answer
5 / 5 3 reviews


March 2019

I previously owned an older model Synology NAS, so it made sense to upgrade. I have used CCL before, but CCL had the best deal by far anyway, fast delivery and great ordering system. A* service as usual. Keep up the great work guys!


October 2018

Well Synology is doing something right as this is the third unit I now own. Easy to set up, quick transfers, can set the fan to be very quiet although mine lives in a spare room. Some people will find the lack of front loading drives a downside, to be honest if I want to swap a drive it's not a massive hassle to power it down and pop the top off. Loaded it up with some Toshiba N300 6TB NAS drives. Seems happy so far.

Kerry Walker

October 2018

Good Product, Good Price, quick and easy set up. Very quick delivery even on the standard option

PDF Datasheets and Manuals

Document File type File size
Datasheet pdf