The Synology RackStation RS3621xs+ is a powerful 12-bay 2U rackmount NAS solution engineered for high throughput and robust data protection in enterprise environments. Powered by a 2.1 GHz Intel Xeon D-1541 eight-core processor with 8GB DDR4 ECC memory (expandable to 64GB), this system delivers exceptional performance with up to 238,273 4K random read IOPS and 5819 MB/s sequential read speeds for demanding virtualization, mail, collaboration, and surveillance workloads. Featuring dual built-in 10GbE ports and four Gigabit Ethernet ports with link aggregation and failover support, the RS3621xs+ ensures high-speed connectivity and network redundancy. Built with dual redundant 500W power supplies and hot-swappable fans for maximum uptime, the system supports 3.5" and 2.5" SATA drives with flexible RAID configurations (0, 1, 5, 6, 10, Basic, F1, JBOD) and AES-NI hardware encryption. Expandable to 36 drive bays using two optional RX1217/RX1217RP expansion units, with two PCIe Gen3 x8 slots for network upgrades and M.2 NVMe SSD cache acceleration. Running on Synology DiskStation Manager (DSM) with advanced Btrfs file system, snapshot technology, and file self-healing capabilities, the RS3621xs+ supports Synology High Availability clustering with minute-level failover for mission-critical deployments, backed by a 5-year limited warranty.