Intel RS25SB008 6Gb/s PCI-E SAS 1GB Controller RAID Card is a high-performance RAID card designed for enterprise-level storage systems. It supports 6Gb/s SAS connections and comes with a 1GB onboard cache for enhanced data throughput and performance. This RAID controller ensures data redundancy and improved system reliability through various RAID levels. It also includes a backup battery unit (BBU) with a cable, providing power to the RAID cache during power failures to prevent data loss, making it ideal for critical data storage environments.