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 throughput1. 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.
Compute
Intel® Xeon® D-1541 8-core 2.1 GHz
Networking
Built-in dual-port 10GbE
Memory
16 GB ECC DDR4 Up to 64 GB
Scalability
Up to 40 drive bays with RX1217(RP)
Synology Surveillance Station transforms the RS4021xs+ into a feature-packed Network Video Recorder solution. Support for up to 90 IP cameras5 and video analytics such as motion detection, no idle zone, foreign object detection, and anomaly detection cater to the most common surveillance scenarios.
RackStation® RS4021xs+


- Power button and indicator
- Alert Off Button
- Drive tray
- Drive status indicator
- 5PSU fan
- 6Power Port
- 7PSU Indicators & Alert Off Buttons
- 8Console port
- 91GbE/10GbE RJ-45 Ports
- 10USB 3.2 Ports
- 11Expansion port
- 12PCIe expansion slot
- 13Reset button