. RS1221RP+ at only 30 to 38 centimeters deep is built for space-sensitive deployments. Boasting over 100K 4K random read IOPS & 2315 MB/s sequential read RS1221RP+ is equipped to handle heavy workloads in data-intensive environments. RS1221RP+ in addition features an extra level of protection with redundant power supplies Key Product Info. Redundant power Maximize service availability Data integrity & protection Product Features Redundant power Reduce the chance that power disruptions on a single distribution channel or PDU causes data & service availability degradation. Maximize service availability When paired with another identical unit Synology High Availability enables automatic minute-level failover between two clustered servers in the event of a server failure to minimize service downtime. Data integrity & protection ECC memory & the Btrfs file system bring higher reliability & snapshot capabilities to help prevent data corruption & simplify data protection.