Ultimate Backup Solution
RS3618xs integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.
RackStation RS3618xs
High performance and scalable NAS simplifies data management, optimizes virtualization environments for large scale businesses.
Ready for 10GbE and beyond
PCIe 3.0 slots allow for faster networking options as you expand your infrastructure. Together with the built-in quad Gigabit ports, RS3618xs offers comprehensive connectivity options for link aggregation and failover configurations.
5-year warranty
At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.
Active Backup for Business
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
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Hyper Backup
Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.
Learn more
Drive Package
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Learn more
Active Backup for Microsoft 365 / Google Workspace
Protect corporate data stored on the cloud. On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Microsoft 365Google WorkspaceNext-generation file system for better data protection
The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools. Learn more
- Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders
- Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots
- File or folder level data restoration makes data recovery fast and flexible
- Automatic file self-healing detects and recovers corrupted files without user intervention
Powered by Synology DiskStation Manager
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Snapshot Replication
Schedulable and instantaneous data protection of shared folders and iSCSI LUNs for quick disaster recovery.
Virtual Machine Manager
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.
Synology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Performance backed by Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.
HDD
SSD
- 1Power button and indicator
- 2Beep off button
- 3Drive status indicator
- 4Drive tray
- 5Power port
- 6PSU on/off switch
- 7PSU fan
- 8Console port
- 91GbE RJ-45 port
- 10USB 3.0 port
- 11Expansion port
- 12PCIe 3.0 slot
- 13Reset button
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Hardware Specifications
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CPU
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CPU
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CPU Model | Intel Xeon D-1521 |
| CPU Quantity | 1 | |
| CPU Cores | 4 | |
| CPU Threads | 8 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 2.4 (base) / 2.7 (turbo) GHz | |
| Hardware Encryption Engine | ||
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Memory
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Memory
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System Memory | 8 GB DDR4 ECC UDIMM |
| Total Memory Slots | 4 | |
| Maximum Memory Capacity | 64 GB (16 GB x 4) | |
| Notes |
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Storage
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Storage
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Drive Bays | 12 |
| Maximum Drive Bays with Expansion Unit | 36 (RX1217 x 2) | |
| Drive Type (See all supported drives) |
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| Hot Swappable Drive* | ||
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External Ports
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External Ports
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RJ-45 1GbE LAN Port | 4 |
| USB 3.2 Gen 1 Port | 2 | |
| Expansion Port | 2 | |
| Expansion Port Type | Infiniband | |
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PCIe
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PCIe
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PCIe Expansion | 2 x Gen3 x8 slots (x8 link) |
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Appearance
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Appearance
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Form Factor (RU) | 2U |
| Size (Height x Width x Depth) | 88 mm x 482 mm x 724 mm | |
| Weight | 14.5 kg | |
| Rack Installation Support* | 4-post 19" rack (Synology Rail Kit - RKS-02) | |
| Notes | The rail kit is sold separately | |
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Others
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Others
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System Fan | 80 mm x 80 mm x 4 pcs |
| Fan Speed Mode |
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| Easy Replacement System Fan | ||
| Power Recovery | ||
| Noise Level* | 50.2 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 500 watts | |
| AC Input Power Voltage | 100V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption |
142.76 watts (Access) 55.05 watts (HDD Hibernation) |
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| British Thermal Unit |
487.12 BTU/hr (Access) 187.84 BTU/hr (HDD Hibernation) |
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| Notes |
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Temperature
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Temperature
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Operating Temperature | 5°C to 35°C (40°F to 95°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
| Operating Humidity | 8% to 80% RH | |
| Storage Humidity | 5% to 95% RH | |
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Certification
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Certification
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Warranty
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Warranty
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5 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
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Environment
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Environment
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RoHS Compliant | |
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Packaging Content
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Packaging Content
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Optional Accessories
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Optional Accessories
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| Notes | All memory modules will operate at the maximum frequency specified by the CPU manufacturer. | |
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DSM Specifications
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| Maximum Single Volume Size |
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| Maximum Internal Volume Number | 128 | |
| SSD Read/Write Cache (Determining cache size) | ||
| SSD TRIM | ||
| RAID Group | ||
| 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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| Notes |
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| Internal Drives |
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| External Drives |
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| File Protocol |
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| Maximum Number of SMB Connections (FSCT-Based) | 500 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
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| Maximum Local User Accounts | 2,048 | |
| Maximum Local Groups | 512 | |
| Maximum Shared Folder | 512 | |
| Maximum Shared Folder Sync Tasks | 12 | |
| Maximum Hybrid Share Folders | 15 | |
| Folder and Package Backup | ||
| Entire System Backup | ||
| Notes | Full-system backup requires DSM 7.2 or later. | |
| Synology High Availability | ||
| Syslog Events per Second | 3,000 | |
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Virtualization
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Virtualization
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VMware vSphere | ESXi 8.0 U2, ESXi 8.0 U1, ESXi 8.0, ESXi 7.0 U3, ESXi 7.0 U2, ESXi 7.0 U1, ESXi 7.0, ESXi 6.7 U3, ESXi 6.7 U2, ESXi 6.7 U1, ESXi 6.7, ESXi 6.5 U3, ESXi 6.5 U2, ESXi 6.5 U1, ESXi 6.5 |
| Microsoft Hyper-V | Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012 | |
| Citrix XenServer | XenServer 7 | |
| OpenStack | Cinder | |
| Supported Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV | |
| 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 | |
| Notes | For an updated list of supported browser versions, check the DSM Technical Specifications. | |
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Add-on Packages view the complete package list
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Synology AI Console
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Synology AI Console
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Third-Party AI Model Integration | |
| Maximum De-Identification Rate | 500 words per second | |
| Notes |
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| Maximum Number of Users | 500 | |
| Notes |
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Download Station
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Download Station
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Maximum Concurrent Download Tasks | 80 |
| Maximum iSCSI Target Number | 64 | |
| Maximum LUN | 128 | |
| LUN Clone/Snapshot, Windows ODX | ||
| Free Email Accounts | 5 (Additional accounts require purchase of licenses) | |
| Maximum Number of Users | 1,100 | |
| Notes |
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| DLNA Compliance | ||
| Facial Recognition | ||
| Object Recognition | ||
| Maximum Snapshots per Shared Folder | 256 | |
| Maximum Snapshots per LUN | 64 | |
| Maximum Snapshots per System | 4,096 | |
| Maximum Replication Tasks for Shared Folders | 32 | |
| Maximum Replication Tasks for LUNs | 16 | |
| Maximum Replication Tasks per System | 32 | |
| Default Licenses | 2 (Additional cameras require purchase of licenses) | |
| Maximum IP Cameras and Total FPS (H.264) |
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| Maximum IP Cameras and Total FPS (H.265) |
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| Notes |
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| Maximum Number of Users | 900 | |
| Maximum Number of Hosted Files | 15,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | |
| Notes |
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| Maximum Number of Users | 900 | |
| Notes |
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| Recommended Virtual Machine Instances | 8 (Learn more) | |
| Recommended Virtual DSM Number (Licenses required) | 8 (including 1 Free License) | |
| Notes | The specifications vary depending on system configuration and memory size. | |
| Maximum Connections | 12 | |