The LSI SAS 9211-4i host bus adapter provides the greatest
available throughput to internal server storage arrays through four
internal 6Gb/s ports, driving up to 256 SAS and SATA physical
devices. This HBA offers dynamic SAS functionality including
dual-port drive redundancy and SATA compatibility. Utilizing one
internal x4 SFF8087 Mini-SAS connector, the low-profile SAS 9211-4i
is an excellent fit for 1U and 2U servers.