Ultra-high performance of over 3,900 MB/s sequential reading and 143,500 iSCSI random read IOPS, capable of installing optional 10GbE/40GbE NICs

The Synology RS3618xs is a 12-bay rackmount NAS built for businesses that need enterprise-grade performance without enterprise-level complexity. With a quad-core processor, 8GB of DDR4 ECC memory (expandable to 64GB), and sequential read speeds exceeding 3,900 MB/s, this diskless system handles demanding workloads like virtualization, large-scale file sharing, and high-transaction databases with ease.

What sets this apart is its scalability and flexibility. Start with 12 bays and expand to 36 drives using Synology’s RX1217 expansion units as your storage needs grow. The system supports optional 10GbE and 40GbE network cards, making it ideal for environments where network speed is critical. Built-in support for VMware, Hyper-V, Citrix, and OpenStack means you can deploy virtual machines directly on the NAS using Synology’s Virtual Machine Manager, consolidating infrastructure and reducing hardware costs.

Who Is This For?

This rackmount NAS is designed for IT professionals managing medium to large business environments. If you’re running virtualized workloads, need reliable iSCSI storage for your VMware cluster, or require a centralized backup solution that won’t bottleneck your network, the RS3618xs delivers. It’s also a strong choice for creative teams working with 4K video or large design files who need fast, concurrent access to shared storage. The ECC memory provides data integrity protection that consumer-grade systems simply can’t match.

Bottom Line

The Synology RS3618xs offers professional-grade performance and reliability in a scalable package. While the upfront investment is significant, especially when factoring in drives and optional network upgrades, you’re getting a system that can grow with your business and handle enterprise workloads without the complexity of traditional SAN solutions. For organizations that value data integrity, performance, and room to expand, this rackmount NAS is a solid foundation for years of reliable service.

  • Quad-core CPU with AES-NI and 8GB (up to 64GB) DDR4 ECC UDIMM; Scalable up to 36 drives with Synology RX1217/RX1217RP
  • Ultra-high performance of over 3,900 MB/s sequential reading and 143,500 iSCSI random read IOPS, capable of installing optional 10GbE/40GbE NICs
  • Complete virtualization solution with Synology Virtual Machine Manager
  • Dynamic iSCSI/NFS storage for VMware, Windows Hyper-V, Citrix, and OpenStack