Synology RackStation RS4021xs+ 16-Bay 3.5" Diskless 4xGbE 2x10GbERJ45 (3U Rack) / Intel Xeon D-1541 8-core / 16GB DDR4

The 16-bay RS4021xs+ provides solid data security and lightening-fast performance with over 234K 4K random read IOPS and 6,258 MB/s sequential read throughput2. Together with its 8-core processor, ECC memory, advanced snapshot technology, and built-in 10GbE connectivity, the RS4021xs+ can support large multi-user environments while handling data-intensive workloads.

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Engineered for service continuityThe RS4021xs+ ensures mission-critical data is always available, enabling businesses to deliver the best results, even in the face of disaster.Redundant powerDual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can be replaced without powering down the system.Maximize service availabilitySynology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover. Learn moreNext-generation file systemBtrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots. Learn more
The RS4021xs+ ensures mission-critical data is always available, enabling businesses to deliver the best results, even in the face of disaster.
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans can be replaced without powering down the system.
Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover. Learn more
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots. Learn more