| Technical Specifications |
| Hardware | |
| CPU | Realtek RTD1293 dual-core 1.4GHz |
| Hardware encryption engine | Yes |
| Memory | 1 GB DDR4 |
| Compatible drive type | 4 x 3.5" or 2.5" SATA HDD/SSD (drives not included) |
| External port | 2 x USB 3.0 port |
| Size (HxWxD) | 184 x 168 x 230 mm |
| Weight | 2.21 kg |
| LAN | 1 x 1GbE (RJ-45) |
| Wake on LAN/WAN | Yes |
| Scheduled power on/of | Yes |
| System fan | 2 (80 x 80 mm) |
| AC input power voltage | 100V to 240V AC |
| Power frequency | 50/60Hz, single phase |
| 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 |
| Maximum operating altitude | 5,000 m (16,400 ft) |
| General DSM specification |
| Networking protocol | SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN ™ , L2TP) |
| File system | • Internal: ext4
• External: ext4, ext3, FAT, NTFS, HFS+, exFAT |
| Supported RAID type | Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
| Storage management | • Maximum internal volume: 256
• Maximum iSCSI target: 10
• Maximum iSCSI LUN: 10 |
| File sharing capability | • Maximum local user account: 1,024
• Maximum local group: 256
• Maximum shared folder: 256
• Maximum concurrent SMB/NFS/AFP/FTP connection: 100 |
| Privilege | Windows Access Control List (ACL), application privileges |
| Directory service | Windows® AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration |
| 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) |
| Supported client | Windows 7 and 10, Mac OS X® 10.11 onwards |
| Supported browser | Chrome®, Firefox®, Internet Explorer® 10 onwards, Safari® 10 onwards; Safari (iOS 10 onwards), Chrome (Android™ 6.0 onwards) |
| Packages and Applications |
| File Station | Virtual drives, remote folders, Windows ACL editor, compressing/extracting archived files, bandwidth control for specific users/groups, creating sharing links, transfer logs |
| FTP Server | Bandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocol, boot over the network with TFTP and PXE support, transfer logs |
| Universal Search | Offer global search into applications and files |
| Hyper Backup | Support local backup, network backup, and data backup to public clouds |
| Backup tool | DSM configuration backup, macOS Time Machine support, Cloud Station Backup Shared folder sync - maximum task number: 2 |
| Cloud Station Suite | Sync data between multiple platforms by installing the client utilities on Windows, Mac, Linux, Android and iOS devices, while retaining up to 32 historical versions of files Maximum concurrent file transfer: 100 |
| Cloud Sync | One or two-way synchronization with public cloud storage providers including Amazon Drive, Amazon S3-compatible storage, Baidu cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, WebDAV servers, Yandex Disk |
| Surveillance Station | Maximum IP camera: 16 (total of 480 FPS at 720p, H.264) (including two free camera licenses; additional cameras require the purchasing of additional licenses) |
| VPN Server | Maximum connection: 5, supported VPN protocol: PPTP, OpenVPN™, L2TP/IPSec |
| Mail Server | Supported Mail Server protocol: POP3, SMTP, IMAP, support LDAP/AD account |
| Mail Station | Webmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customizable SMTP server |
| Collaboration Suite | • Chat maximum user: 10
• Office maximum user: 10, maximum simultaneous editing user: 10
• Calendar: support CalDAV and access via mobile devices |
| Note Station | Rich-text note organization and versioning, encryption, sharing, media embedding and attachments |
| Storage Analyzer | Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, largest/most/least frequently modified files |
| Security Advisor | Malware detection/removal, user account/password, network, system-related security scan |
| Antivirus Essential | Full system scan, scheduled scan, white list customization, virus definition auto update |
| Download Station | Supported download protocol: BT, HTTP, FTP, NZB, eMule, Thunder, FlashGet, QQDL Maximum concurrent download task: 30 |
| Web Station | Virtual host (up to 30 websites), PHP/MariaDB®, third-party application support |
| Other packages | Video Station, Photo Station, Audio Station, DNS Server, RADIUS Server, iTunes® Server, Log Center, third-party packages available on Package Center |
| 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 |
| Environment and Packaging |
| Environment safety | RoHS compliant |
| Package content | • DS418j main unit
• Quick Installation Guide
• Accessory pack
• AC power adapter and power cord
• RJ-45 LAN cable |
| Optional accessories | • Synology Surveillance Video Decoder VS360HD
• Surveillance Device License Pack |
