Synology RS3621XS+ 12-Bay RackStation NAS (Diskless)

The Synology RackStation RS3621xs+ is a 12-bay 2U rackmount NAS engineered for enterprise and large-business environments that demand high throughput, data integrity, and scalability. At its core is an 8-core Intel processor paired with ECC DDR4 memory, delivering up to 238,273 random read IOPS and 5,819 MB/s sequential read performance — numbers that support concurrent access from virtualization clusters, surveillance recording systems, mail servers, and collaborative office applications. Dual built-in 10GbE network ports provide the bandwidth pipeline to match, while two PCIe expansion slots allow administrators to add M.2 NVMe SSD cache adapters or additional high-speed network interface cards as requirements evolve.

Reliability is central to the RS3621xs+ design. Two redundant hot-swappable power supplies protect against PSU failure, and the system supports a wide range of RAID configurations to guard against drive loss. For organizations anticipating storage growth, the RS3621xs+ scales from its native 12 bays up to 36 bays by attaching two RX1217 or RX1217RP expansion units — all managed through Synology's DiskStation Manager (DSM) operating system. DSM provides a comprehensive suite of built-in tools for snapshots, replication, backup, and storage analytics, reducing reliance on third-party software. Backed by Synology's 5-year warranty, the RS3621xs+ is designed to serve as a long-term infrastructure investment for data-intensive business operations.