RackStation RS3618xs


  • Model: RS3618xs
  • Processor: Intel Xeon D-1521 Quad-Core 2.4 GHz (up to 2.7 GHz)
  • Memory: 8GB DDR4 ECC UDIMM (expandable to 64GB)
  • Storage: 12 x 3.5"/2.5" SATA III bays
  • Network: 4 x 1GbE RJ45
  • Dimensions: 88 x 430.5 x 692 mm
  • Weight: 14.5 kg (diskless)

RackStation RS3618xs

Synology RackStation RS3618xs

Enterprise-Grade Performance

The Synology RackStation RS3618xs is a 12-bay NAS powered by a 2.4 GHz Intel Xeon D-1521 Quad-Core processor (up to 2.7 GHz) with 8GB DDR4 ECC RAM (expandable to 64GB). It delivers sequential read speeds up to 3,900 MB/s and 143,500 iSCSI random read IOPS, ideal for large-scale enterprises handling virtualization, databases, and intensive workloads.


Scalable Storage and Connectivity

Supporting up to 12 3.5"/2.5" SATA drives (expandable to 36 with RX1217/RX1217RP units), the RS3618xs offers up to 144TB raw capacity (216TB with 18TB drives). It features four 1GbE LAN ports with link aggregation/failover and two PCIe 3.0 x8 slots for optional 10GbE/40GbE NICs, ensuring flexible, high-speed networking for growing infrastructures.


Synology RackStation RS3618xs
Synology RackStation RS3618xs

Robust Data Protection and Management

Running Synology DSM, the RS3618xs integrates Btrfs with 1,024 shared folder snapshots and 65,000 system-wide snapshots for data recovery. It supports RAID 0, 1, 5, 6, 10, JBOD, and RAID F1, with tools like Synology Drive Client, Hyper Backup, and Active Backup for VMware, Windows, and cloud (Microsoft 365/Google Workspace), ensuring comprehensive data security.


Synology RackStation RS3618xs: All Features

Processor Intel Xeon D-1521 Quad-Core 2.4 GHz (up to 2.7 GHz)
Memory 8GB DDR4 ECC UDIMM (expandable to 64GB)
Storage 12 x 3.5"/2.5" SATA HDD/SSD bays, expandable to 36 with RX1217/RX1217RP
Ports 2 x USB 3.2 Gen 1 Type-A, 2 x Expansion Ports
RAID Support RAID 0, 1, 5, 6, 10, JBOD, RAID F1
Software DSM, Synology Drive Client, Hyper Backup, Active Backup, Virtual Machine Manager
Security AES-NI encryption, Btrfs snapshots, auto file self-healing

Synology RackStation RS3618xs: All Specifications

Model RS3618xs
Processor Intel Xeon D-1521 Quad-Core 2.4 GHz (up to 2.7 GHz), 8MB cache
Memory 8GB DDR4 ECC UDIMM (expandable to 64GB, 4 x 16GB)
Max Capacity 144TB (12 x 12TB drives, up to 216TB with 18TB drives, varies by RAID)
RAID Support RAID 0, 1, 5, 6, 10, JBOD, RAID F1
File System Internal: Btrfs, EXT4; External: Btrfs, EXT4, EXT3, FAT32, NTFS, HFS+, exFAT
Ports 2 x USB 3.2 Gen 1 Type-A, 2 x Expansion Ports
Performance Up to 3,900 MB/s read, 143,500 iSCSI random read IOPS
Encryption AES-NI hardware encryption
Operating System Synology DSM 7.1 or later
Power Supply 500W, 100-240V AC, 50/60 Hz
Power Consumption ~142.76W (access), ~55.05W (HDD hibernation)
Cooling 4 x 80mm fans
Operating Temperature 5°C to 35°C
Non-Operating Temperature -20°C to 60°C
Noise Level ~40.3 dB(A)
Dimensions (HxWxD) 88 x 430.5 x 692 mm
Weight 14.5 kg (diskless)
System Compatibility Windows 7+, macOS 10.12+, Linux, VMware, Citrix, Hyper-V, OpenStack
Certifications FCC, CE, BSMI, VCCI, RCM, EAC, CCC, KC, RoHS
Warranty 5-year limited
Package Contents NAS, accessory pack, AC power cord, quick installation guide

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