Synology RackStation RS3618xs 12-Bay NAS, Xeon D-1521 2.4GHz, 8GB DDR4, 4x LAN, 2x USB 3.0, 2x PCIe, Redundant PSU, Rackmount Storage Server
- Free delivery by Tomorrow, Fri, Oct 30
- Bank transfer payment
- 1 Year warranty
- Free returns
The Synology RackStation RS3618xs is a robust 12-bay NAS server engineered for businesses requiring high performance, scalability, and reliable data management. Powered by an Intel Xeon D-1521 Quad-Core 2.4GHz processor and equipped with 8GB DDR4 ECC RAM, it handles intensive multitasking and demanding workloads with ease.
Featuring 12 hot-swappable 3.5"/2.5" SATA drive bays, the RS3618xs offers substantial storage capacity with flexible RAID options for data protection. It includes 4 Gigabit Ethernet ports for versatile network configurations and redundancy, ensuring smooth data flow.
With 2 USB 3.0 Type-A ports, and 2 PCIe Gen 3.0 x8 slots, you can expand storage performance using SSD cache or additional network cards. The unit supports two expansion units to further scale storage capacity.
The 500W redundant power supply guarantees continuous operation, minimizing downtime for critical business applications.
Running on Synology’s award-winning DiskStation Manager (DSM), the RS3618xs offers intuitive management tools, advanced backup, virtualization support, and comprehensive security features.
- Intel Xeon D-1521 Quad-Core 2.4GHz processor for reliable, fast computing
- 8GB DDR4 ECC RAM, expandable to meet growing demands
- 12 hot-swappable SATA bays with flexible RAID configurations
- 4x Gigabit Ethernet ports with failover and link aggregation
- 2x USB 3.0 Type-A ports and 2x PCIe Gen 3.0 x8 slots for expandability
- Supports 2 expansion units for increased storage capacity
- 500W redundant power supply for high availability
- Compatible with Synology DSM OS for advanced storage management
Ideal for virtualization, file sharing, backup, and enterprise data storage, the Synology RS3618xs delivers a scalable, secure, and high-performance NAS solution.
High-speed scalable storage server
Synology RS3618xs is a reliable, superior-performance network-attached storage solution for large-scale enterprises with demanding business applications. It simplifies data management, optimizes virtualization environments, and rapidly expands storage capacity with minimal time investment in setup and maintenance.
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CPU
quad-core up to 2.7GHz
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RAM options
8GB DDR4 ECC UDIMM, up to 64GB
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Network
4 x 1GbE port, optional 10GbE NIC support
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Scalability
Up to 36 drives with RX1217/RX1217RP
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.
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.
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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.
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Drive Package
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
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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
Fully certified storage virtualization solutions
Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.
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Next-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.
- 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.


| Brand | Synology |
|---|---|
| Model | RackStation RS3618xs |
| Part number | RS3618XS |
| SKU | 3940 |
| Warranty | 1 Year |
| Weight | 14.00 kg |
| Dimensions | 90x70x30 cm |
Hardware Specifications
CPU
CPU Model
Intel Xeon D-1521
CPU Quantity
1
CPU Core
4
CPU Architecture
64-bit
CPU Frequency
2.4 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
Memory
System Memory
8 GB DDR4 ECC UDIMM
Memory Module Pre-installed
8 GB (8 GB x 1)
Total Memory Slots
4
Maximum Memory Capacity
64 GB (16 GB x 4)
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.
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
For more information on the recommended memory configurations, visit here.
Storage
Drive Bays
12
Maximum Drive Bays with Expansion Unit
36 (RX1217 x 2)
Drive Type (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Hot Swappable Drive*
External Ports
RJ-45 1GbE LAN Port
4
USB 3.2 Gen 1 Port
2
Expansion Port
2
Expansion Port Type
Infiniband
PCIe
PCIe Expansion
2 x Gen3 x8 slots (x8 link)
Appearance
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
Others
System Fan
80 mm x 80 mm x 4 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
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)
British Thermal Unit
487.12 BTU/hr (Access)
187.84 BTU/hr (HDD Hibernation)
Notes
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature
5°C to 35°C (40°F to 95°F)
Storage Temperature
-20°C to 60°C (-5°F to 140°F)
Relative Humidity
5% to 95% RH
Certification
FCC
CE
BSMI
VCCI
RCM
EAC
CCC
KC
BIS
Warranty
5 Years
Notes
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 1
Quick Installation Guide X 1
Optional Accessories
DDR4 ECC UDIMM: D4EC-2666-8G/D4EC-2666-16G
Expansion Units: RX1217/RX1217RP
Enterprise Series 3.5" SATA HDD: HAT5300 Series
Enterprise Series 2.5" SATA SSD: SAT5200 Series
M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
M.2 SSD Adapter Card: M2D20/M2D18
25GbE Network Interface Card: E25G30-F2
10GbE Network Interface Card: E10G30-F2/E10G30-T2/E10G18-T1
Rail Kit Sliding: RKS-02
Notes
All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
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