Synology DiskStation DS218j A versatile entry-level 2-bay NAS for home and personal cloud storage
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Cost-effective home storage server
Backup all your digital assets with Synology DS218j, a powerful 2-bay NAS with rapid data transmission and low power consumption, designed for home users.
Eco-friendly
17.48 W in access, 7.03 W in HDD Hibernation
High Performance
Over 113 MB/s and 112 MB/s sequential reading and writing
Cloud Station Backup for PC protection
Featuring real-time incremental backup technology, your data stored on a PC can be backed up to a Synology NAS instantly, using minimal system resources, bringing a truly comprehensive and secure private cloud experience.
Incremental backup: fast while reducing performance impact
Cloud Station provides an optimized PC backup solution. With the incremental backup technology, Cloud Station backs up only the modified files and divides them into even smaller parts, demanding significantly less system resources than traditional backup methods.
Real-time backup saving you from massive data loss
Cloud Station Backup carries out the most complete backup tasks in real-time. When data is voluminous, real-time backup prevents massive data loss due to unexpected disaster during backup cycles.
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. Learn more
Cloud Station Sharesync
Cloud Station Drive
Cloud Station Server
DS Cloud
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.
Seamless integration with your mobile devices
Synology mobile applications are designed to allow quick and secure access to your data wherever you are.
DS audio
DS Photo
DS video
Powered by Synology DSM
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.
Desktop Backup
Simplified backup solution for your Mac, PC, and mobile devices.
File Server/Management
Powerful built-in file management and sharing services.
DSM UI
Award-winning operating system with an intuitive user interface and powerful capabilities.
Security
Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.
Multimedia
Complete multimedia solution for management, streaming, and playback.
- 1Status indicator
- 2LAN indicator
- 3Drive status indicator
- 4Power button and indicator
- 5Fan
- 6USB 3.0 port
- 7Reset button
- 8Power port
- 91GbE RJ-45 port
- 10Kensington Security Slot
| Hardware Specifications | |
| CPU | |
| CPU Model | Marvell Armada 385 88F6820 |
| CPU Architecture | 32-bit |
| CPU Frequency | Dual Core 1.3 GHz |
| Hardware Encryption Engine | |
| Memory | |
| System Memory | 512 MB DDR3 |
| Storage | |
| Drive Bays | 2 |
| Compatible Drive Type* (See all supported drives) |
|
| Maximum Internal Raw Capacity | 24 TB (12 TB drive x 2) (Capacity may vary by RAID types) |
| Maximum Single Volume Size | 16 TB |
| Notes |
|
| External Ports | |
| RJ-45 1GbE LAN Port | 1 |
| USB 3.0 Port | 2 |
| File System | |
| Internal Drives | EXT4 |
| External Drives |
|
| Notes |
|
| Appearance | |
| Size (Height x Width x Depth) | 165 mm x 100 mm x 225.5 mm |
| Weight | 0.88 kg |
| Others | |
| System Fan | 92 mm x 92 mm x 1 pcs |
| Fan Speed Mode |
|
| Brightness adjustable front LED indicators | |
| Power Recovery | |
| Noise Level* | 18.2 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* | 17.48 W (Access) 7.03 W (HDD Hibernation) |
| British Thermal Unit | 59.68 BTU/hr (Access) 24 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 |
|
| Warranty | 2 Years |
| Notes | Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s). |
| DSM Specifications ( See more ) | |
| Storage Management | |
| Maximum Internal Volume Number | 256 |
| Maximum iSCSI Target Number | 10 |
| Maximum iSCSI LUN | 10 |
| Supported RAID Type |
|
| RAID Migration | Basic to RAID 1 |
| Volume Expansion with Larger HDDs |
|
| Volume Expansion by Adding a HDD | Synology Hybrid RAID |
| File Sharing Capacity | |
| Maximum Local User Accounts | 1024 |
| Maximum Local Groups | 256 |
| Maximum Shared Folder | 256 |
| Maximum Shared Folder Sync Tasks | 2 |
| Maximum Concurrent CIFS/AFP/FTP Connections | 100 |
| Windows Access Control List (ACL) Integration | |
| NFS Kerberos Authentication | |
| Log Center | |
| Syslog Events per Second | 100 |
| Add-on Packages (learn more about the complete add-on package list) | |
| Chat | |
| Maximum Users | 10 |
| Notes |
|
| Cloud Station Server | |
| Maximum Number of Concurrently Connected Devices | 100 |
| Maximum Number of Synced Files (ext4) | 100,000 / single file reaction time 840 ms |
| Notes |
|
| Download Station | |
| Maximum Concurrent Download Tasks | 30 |
| exFAT Access (optional) | |
| Media Server | |
| DLNA Compliance | |
| Office | |
| Maximum Users | 10 |
| Maximum Simultaneous Editing Users | 10 |
| Notes |
|
| Surveillance Station | |
| Maximum IP cam (Licenses required) | 14 (including 2 Free License) (See All Supported IP Cameras) |
| Total FPS (H.264)* | 420 FPS @ 720p (1280x720) 120 FPS @ 1080p (1920×1080) 90 FPS @ 3M (2048x1536) 60 FPS @ 5M (2591x1944) 20 FPS @ 4K (3840x2160) |
| Total FPS (H.265)* | 420 FPS @ 720p (1280x720) 210 FPS @ 1080p (1920×1080) 140 FPS @ 3M (2048x1536) 90 FPS @ 5M (2591x1944) 30 FPS @ 4K (3840x2160) |
| Total FPS (MJPEG)* | 140 FPS @ 720p (1280x720) 70 FPS @ 1080p (1920×1080) 40 FPS @ 3M (2048x1536) 20 FPS @ 5M (2591x1944) |
| 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 | |
| Video Transcoding | Group 2 (See more) |
| VPN Server | |
| Maximum Connections | 5 |
| Environment & Packaging | |
| Environment | RoHS Compliant |
| Packaging Content |
|
| Optional Accessories |
|
- Dual Core 1.3 GHz
- 100V to 240V AC
- RJ-45 1GbE LAN Port 1
- Maximum Internal Raw Capacity 24 TB (12 TB drive x 2) (Capacity may vary by RAID types) ,
- Maximum Single Volume Size 16 TB
- 165 mm x 100 mm x 225.5 mm
- 0.88 kg
- 17.48 W
- -20°C to 60°C (-5°F to 140°F) ,
- 5°C to 40°C (40°F to 104°F)
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