Synology DiskStation DS218j 2-Bay NAS – DS218j
DiskStation DS218j
A versatile entry-level 2-bay NAS for home and personal cloud storage
Overview
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.
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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.
Incremental backup: fast while reducing performance impact-
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.
Real-time backup saving you from massive data loss
Synchronize files across your devices
Cloud Station Suite provides real-time data synchronization across all your devices and other Synology NAS. “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 secure, customizable address, so that you can instantly access media and work files on any Internet-connected device with no 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.
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.
- (1) Status indicator
- (2) LAN indicator
- (3) Drive status indicator
- (4) Power button and indicator
- (5) Fan
- (6) USB 3.0 port
- (7) Reset button
- (8) Power port
- (9) 1GbE RJ-45 port
- (10) Kensington Security Slot
Detailed Tech Specification
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 |
| 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. |
Storage |
|
| Drive Bays | 2 |
| Compatible Drive Type* (See all supported drives) |
|
| Maximum Internal Raw Capacity | 28 TB (14 TB drive x 2) (Capacity may vary by RAID types) |
| Maximum Single Volume Size | 16 TB |
| Hot Swappable Drive |
– |
| 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 |
| Notes | The rail kit is sold separatelty. |
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 |
|
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 Services |
|
| File Protocol | CIFS/AFP/NFS/FTP/WebDAV |
| Maximum Concurrent CIFS/AFP/FTP Connections | 100 |
| Windows Access Control List (ACL) Integration |
✓ |
| NFS Kerberos Authentication |
✓ |
Account & Shared Folder |
|
| Maximum Local User Accounts | 1024 |
| Maximum Local Groups | 256 |
| Maximum Shared Folder | 256 |
| Maximum Shared Folder Sync Tasks | 2 |
| 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 Hosted Files (ext4) | 100,000 |
| Notes |
|
| Download Station |
✓ |
| Maximum Concurrent Download Tasks | 30 |
| exFAT Access (optional) |
✓ |
| Media Server |
✓ |
| DLNA Compliance |
✓ |
| Moments |
✓ |
| Facial recognition |
✓ |
| Subject recognition |
– |
| Auto Color & Rotate |
– |
| Moments Select |
– |
| Surveillance Station |
✓ |
| Maximum IP cam (Licenses required) | 14 (including 2 Free License) (See All Supported IP Cameras) |
| Total FPS (H.264)* | 420 FPS @ 720p (1280×720) 120 FPS @ 1080p (1920×1080) 90 FPS @ 3M (2048×1536) 60 FPS @ 5M (2591×1944) 20 FPS @ 4K (3840×2160) |
| Total FPS (H.265)* | 420 FPS @ 720p (1280×720) 210 FPS @ 1080p (1920×1080) 140 FPS @ 3M (2048×1536) 90 FPS @ 5M (2591×1944) 30 FPS @ 4K (3840×2160) |
| Total FPS (MJPEG)* | 140 FPS @ 720p (1280×720) 70 FPS @ 1080p (1920×1080) 40 FPS @ 3M (2048×1536) 20 FPS @ 5M (2591×1944) |
| 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. |
| Synology Drive |
✓ |
| Recommended Number of Hosted Files | 100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) |
| Recommended Number of Concurrent Connections for PC Clients | 200 (the number of connections that can be maintained when the recommended number of hosted files was reached) |
| Notes |
|
| Synology Office |
✓ |
| Maximum Users | 200 |
| Notes |
|
| Video Station |
✓ |
| Video Transcoding | Group 2 (See more) |
| VPN Server |
✓ |
| Maximum Connections | 10 |
Environment & Packaging |
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| Environment | RoHS Compliant |
| Packaging Content |
|
| Optional Accessories |
|
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