Description
Synology DiskStation DS918+ is designed for small and medium-sized businesses and IT enthusiasts. With a powerful built-in AES-NI hardware encryption engine, DS918+ provides exceptional encrypted file transmission. Also capable of transcoding up to two channels of H.265/H.264 4K videos at the same time, DS918+ is ideal for sharing and storing ultra-high definition media content.
Satisfy your need for performance and capacity
DS918+ supports up to two M.2 NVMe 2280 SSDs, allowing fast system cache creation without occupying internal drive bays. Scalable up to 9 drives with a Synology Expansion Unit DX517, DS918+ answers the need for flexible storage capacity.
High-speed scalable storage server
Synology DS918+ is designed for small and medium-sized businesses and IT enthusiasts. With a powerful built-in AES-NI hardware encryption engine, DS918+ provides exceptional encrypted file transmission. Also capable of transcoding up to two channels of H.265/H.264 4K videos at the same time, DS918+ is ideal for sharing and storing ultra-high definition media content.
CPU
Quad-core 1.5GHz burst up to 2.3GHz
Network
Dual 1GbE LAN ports
Memory
4GB DDR3L, scalable up to 8GB
Performance
Over 225 MB/s and 221 MB/s encrypted sequential reading and writing
| Hardware Specifications | |
| CPU | |
| CPU Model | Intel Celeron J3455 |
| CPU Architecture | 64-bit |
| CPU Frequency | Quad Core 1.5 burst up to 2.3 GHz |
| Hardware Encryption Engine (AES-NI) | |
| Hardware Transcoding Engine | H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30 |
| Memory | |
| System Memory | 4 GB DDR3L |
| Memory Module Pre-installed | 4GB (1 x 4GB) |
| Total Memory Slots | 2 |
| Memory Expandable up to | 8 GB (4 GB x 2) |
| Storage | |
| Drive Bays | 4 |
| Maximum Drive Bays with Expansion Unit | 9 |
| M.2 Drive Slots | 2 (NVMe) |
| Compatible Drive Type* (See all supported drives) |
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| Maximum Internal Raw Capacity | 56 TB (14 TB drive x 4) (Capacity may vary by RAID types) |
| Maximum Raw Capacity with Expansion Units | 126 TB (56 TB + 14 TB drive x 5) (Capacity may vary by RAID types) |
| Maximum Single Volume Size | 108 TB |
| Hot Swappable Drive | |
| Notes |
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| External Ports | |
| RJ-45 1GbE LAN Port | 2 (with Link Aggregation / Failover support) |
| USB 3.0 Port | 2 |
| eSATA Port | 1 |
| File System | |
| Internal Drives |
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| External Drives |
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| Notes | exFAT Access is purchased separately in Package Center. |
| Appearance | |
| Size (Height x Width x Depth) | 166 mm x 199 mm x 223 mm |
| Weight | 2.28 kg |
| Others | |
| System Fan | 92 mm x 92 mm x 2 pcs |
| Fan Speed Mode |
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| Brightness adjustable front LED indicators | |
| Power Recovery | |
| Noise Level* | 19.8 dB(A) |
| Scheduled Power On/Off | |
| Wake on LAN/WAN | |
| Power Supply Unit / Adapter | 100W |
| AC Input Power Voltage | 100V to 240V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power Consumption* | 28.8 W (Access) 12.6 W (HDD Hibernation) |
| British Thermal Unit | 98.27 BTU/hr (Access) 42.99 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 |
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| Warranty | 3 Years |
| Notes |
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| DSM Specifications ( See more ) |
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| Storage Management | |
| Maximum Internal Volume Number | 512 |
| Maximum iSCSI Target Number | 128 |
| Maximum iSCSI LUN | 256 |
| iSCSI LUN Clone/Snapshot, Windows ODX | |
| SSD Read/Write Cache (White Paper) | |
| SSD TRIM | |
| Supported RAID Type |
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| RAID Migration |
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| Volume Expansion with Larger HDDs |
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| Volume Expansion by Adding a HDD |
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| Global Hot Spare Supported RAID Type |
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| File Services | |
| File Protocol | CIFS/AFP/NFS/FTP/WebDAV |
| Maximum Concurrent CIFS/AFP/FTP Connections | 1000 |
| Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) | 2000 |
| Windows Access Control List (ACL) Integration | |
| NFS Kerberos Authentication | |
| Account & Shared Folder | |
| Maximum Local User Accounts | 2048 |
| Maximum Local Groups | 256 |
| Maximum Shared Folder | 512 |
| Maximum Shared Folder Sync Tasks | 8 |
| High Availability Manager | |
| Log Center | |
| Syslog Events per Second | 800 |
| Virtualization | |
| VMware vSphere 6 with VAAI | |
| Windows Server 2012 | |
| Windows Server 2012 R2 | |
| Windows Server 2016 | |
| Citrix Ready | |
| OpenStack | |
| Add-on Packages (learn more about the complete add-on package list) | |
| Antivirus by McAfee (Trial) | |
| Central Management System | |
| Chat | |
| Maximum Users | 1500 |
| Notes |
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| Cloud Station Server | |
| Maximum Number of Concurrently Connected Devices | 1000 |
| Maximum Number of Concurrently Connected Devices (with RAM expansion) | 2000 |
| Maximum Number of Hosted Files (btrfs) | 1,000,000 |
| Maximum Number of Hosted Files (ext4) | 1,000,000 |
| Notes |
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| Document Viewer | |
| Download Station | |
| Maximum Concurrent Download Tasks | 80 |
| exFAT Access (optional) | |
| MailPlus / MailPlus Server | |
| Free Email Accounts | 5 (Licenses required for additional accounts) |
| Maximum number of concurrent users | Up to 100 |
| Maximum Server Performance | 1,052,000 emails per day, approx. 32GB |
| Notes |
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| Media Server | |
| DLNA Compliance | |
| Moments | |
| Facial recognition | |
| Subject recognition | |
| Snapshot Replication | |
| Maximum Snapshots per Shared Folder | 1024 |
| Maximum of system snapshots | 65536 |
| Surveillance Station | |
| Maximum IP cam (Licenses required) | 40 (including 2 Free License) (See All Supported IP Cameras) |
| Total FPS (H.264)* | 1200 FPS @ 720p (1280×720) 840 FPS @ 1080p (1920×1080) 550 FPS @ 3M (2048×1536) 300 FPS @ 5M (2591×1944) 180 FPS @ 4K (3840×2160) |
| Total FPS (H.265)* | 1200 FPS @ 720p (1280×720) 1200 FPS @ 1080p (1920×1080) 900 FPS @ 3M (2048×1536) 550 FPS @ 5M (2591×1944) 300 FPS @ 4K (3840×2160) |
| Total FPS (MJPEG)* | 720 FPS @ 720p (1280×720) 500 FPS @ 1080p (1920×1080) 330 FPS @ 3M (2048×1536) 200 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 | 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 Connections for PC Clients | 450 (the number of connections that can be maintained when the recommended number of hosted files was reached) |
| Notes |
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| Synology Office | |
| Maximum Users | 1800 |
| Notes |
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| Video Station | |
| Video Transcoding | 4K Group 1 (See more) |
| Maximum Transcoding Channel Number | 2 channel, 30 FPS @ 4K (4096 x 2160), H.264 (AVC)/H.265 (HEVC) or 2 channel, 30 FPS @ 1080p (1920×1080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1 |
| Virtual Machine Manager | |
| Recommended Virtual Machine Instances | 4 (Learn more) |
| Recommended Virtual DSM Number (Licenses required) | 4 (including 1 Free License) |
| Notes |
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| VPN Server | |
| Maximum Connections | 20 |
| Environment & Packaging | |
| Environment | RoHS Compliant |
| Packaging Content |
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| Optional Accessories |
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| General | |
| Networking Protocols |
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| Windows AD Domain Integration | Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration |
| HDD Management |
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| Security | Firewall, encrypted shared folder, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let’s Encrypt support, HTTPS (Customizable cipher suite) |
| Supported Clients |
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| Supported Browsers |
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| 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 |
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