Reliable Data Management for Business Workloads Synology RackStation RS2421+ and RS2421RP+ (redundant power) are 2U 12-bay rackmount NAS with cost-effective file management, sharing, and backup capabilities, specially designed for small business and remote office deployments. Powered by Synology’s DiskStation Manager (DSM), RS2421(RP)+ units come with powerful built-in business services and can easily be expanded with SSD cache and 10/25GbE networking capabilities. Key Features High Performance - Support critical workloads with up to 2,200 MB/s read and 1,154 MB/s write performance1 Redundant Power - Maximize uptime with two redundant power supply units (RS2421RP+) Expansion Options - Scale up to 24 drives with the RX1217(RP)2 and add 10/25GbE networking or fast NVMe SSD Cache with PCIe add-in cards3 High Availability - Combine two devices into a Synology High Availability cluster for maximum service uptime and minute-level failover Extendable Warranty - Includes a 3-year limited warranty with an optional extension to 5 years4 1. Performance figures obtained through internal testing by Synology. Actual performance may vary depending on the testing environment, usage, and configuration. 2. RS2421+/RS2421RP+ supports up to 24 drives with one Synology RX1217(RP) expansion unit, sold separately. 3. For the most up-to-date list of compatible NICs, please check our compatiblity list. 4. The warranty period starts from the purchase date as stated on your purchase receipt.
