Description
CPU
64-bit 4-core 1.4 GHz
Performance
Over 112 MB/s encrypted reading and writing1
Storage
Maximum 64 TB raw capacity
Energy-saving
7.88 W in hibernation mode
Manage your photo collections
Manage your photos efficiently with automated tools to group, filter, organize, and share. All while keeping your memories safe and secure. Learn more
Access and sync your files seamlessly
Synology Drive provides a built-in universal portal to access your data anytime and anywhere, and synchronize all your files across platforms, including Windows, macOS, Linux, Android, and iOS. Learn more
- Sync files on demand: Save the storage space and network bandwidth of your PC.
- Go back in time: Easily retrieve previous versions of your shared files.
- Back up your data: Protect your files with scheduled backups or in real-time.
Powered by Synology DiskStation Manager
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Hyper Backup
Store multiple backup versions with block-level incremental data backup and cross-version deduplication.
Surveillance
Protect your home or business with intelligent monitoring and video management tools.
DiskStation DS420j
- 1Status indicator
- 2LAN indicator
- 3Power button and indicator
- 4Drive status indicator
- 51GbE RJ-45 port
- 6Power port
- 7Kensington Security Slot
- 8System fan
- 9USB 3.0 port
- 10Reset button
Notes:
- Performance figures may vary depending on environment, usage, and configuration.
CPU |
CPU Model | Realtek RTD1296 |
|---|---|---|
| CPU Quantity | 1 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 1.4 GHz | |
| Hardware Encryption Engine | ||
Memory |
System Memory | 1 GB DDR4 non-ECC |
| 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 | 4 |
| Compatible Drive Type* (See all supported drives) |
|
|
| Hot Swappable Drive | – | |
| 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. | |
External Ports |
RJ-45 1GbE LAN Port | 1 |
| USB 3.2 Gen 1 Port* | 2 | |
| Notes | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. | |
File System |
Internal Drives |
|
| External Drives |
|
|
| Notes | exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center. | |
Appearance |
Size (Height x Width x Depth) | 184 mm x 168 mm x 230 mm |
| Weight | 2.21 kg | |
Others |
System Fan | 80 mm x 80 mm x 2 pcs |
| Fan Speed Mode |
|
|
| Brightness Adjustable Front LED Indicators | ||
| Power Recovery | ||
| Noise Level* | 20.6 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 90 W | |
| AC Input Power Voltage | 100 V to 240 V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 21.71 W (Access) 7.88 W (HDD Hibernation) |
|
| British Thermal Unit | 74.08 BTU/hr (Access) 26.89 BTU/hr (HDD Hibernation) |
|
| Notes |
|
|
Temperature |
Operating Temperature | 0°C to 40°C (32°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 | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
RoHS Compliant | |
Packaging Content |
|
|
Optional Accessories |
|
|
DSM Specifications |
||
|---|---|---|
Storage Management |
Maximum Single Volume Size* | 108 TB |
| Maximum Internal Volume Number | 64 | |
| SSD TRIM | ||
| Supported RAID Type |
|
|
| RAID Migration |
|
|
| Volume Expansion with Larger HDDs |
|
|
| Volume Expansion by Adding a HDD |
|
|
| Global Hot Spare Supported RAID Type |
|
|
| Notes | Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration. | |
File Services |
File Protocol | SMB/AFP/NFS/FTP/WebDAV |
| Maximum Concurrent SMB/AFP/FTP Connections | 100 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
| Notes | The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed. | |
Account & Shared Folder |
Maximum Local User Accounts | 1,024 |
| Maximum Local Groups | 256 | |
| Maximum Shared Folder | 256 | |
| Maximum Shared Folder Sync Tasks | 4 | |
Log Center |
Syslog Events per Second | 200 |
General Specifications |
Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
| Supported Browsers |
|
|
| Supported Language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 | |
| Notes | For an updated list of supported browser versions, check the DSM Technical Specifications. | |
Add-on Packages view the complete package list |
||
Synology Chat |
Maximum Users | 10 |
| Notes | The number of concurrent HTTP connections for Synology Chat was configured to the maximum. | |
Download Station |
Maximum Concurrent Download Tasks | 80 |
SAN Manager |
Maximum iSCSI Target Number | 10 |
| Maximum LUN | 10 | |
| Notes | iSCSI Manager has been renamed to SAN Manager in DSM 7.0. | |
Media Server |
DLNA Compliance | |
Synology Photos |
Facial Recognition | |
| Notes | Photo Station and Synology Moments are succeeded by Synology Photos in DSM 7.0. For a features comparison, check this article. | |
Surveillance Station |
Maximum IP cam (Licenses required) | 16 (including 2 Free License) (See All Supported IP Cameras) |
| Total FPS (H.264) | 480 FPS @ 720p (1280×720) 288 FPS @ 1080p (1920×1080) 150 FPS @ 3M (2048×1536) 100 FPS @ 5M (2591×1944) 70 FPS @ 4K (3840×2160) |
|
| Total FPS (H.265) | 480 FPS @ 720p (1280×720) 384 FPS @ 1080p (1920×1080) 256 FPS @ 3M (2048×1536) 160 FPS @ 5M (2591×1944) 100 FPS @ 4K (3840×2160) |
|
| Total FPS (MJPEG) | 240 FPS @ 720p (1280×720) 150 FPS @ 1080p (1920×1080) 100 FPS @ 3M (2048×1536) 60 FPS @ 5M (2591×1944) |
|
| Notes |
|
|
Synology Drive |
Recommended Number of Hosted Files | 500,000 (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 Sync 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 |
Notes:
- Model specifications are subject to change without prior notice.
- The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
- The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
Reviews
There are no reviews yet.