Synology RS3621RPxs

The RS3621RPxs is a 12-bay 2U storage server with built-in redundant power, purpose-built to host compute-intensive services while keeping mission-critical data protected. Two PCIe expansion slots allow NVMe caching or high-bandwidth networking to be added as needs grow — and because there are two, it does not force the usual choice between cache and 10GbE that single-slot models impose. A 6-core Xeon D-1531 and 500W redundant supplies put it a clear step above the RS3618xs, at over 189,000 4K random read IOPS and 4,718 MB/s sequential read.