The Sybil SDLPPEX2IR low profile 2 port SATA II phiexpress X1 card offers simple connectivity between a host computer and SATA II devices. The controller card is backward compatible with SATA I devices, providing the versatility to use older storage, and features support for RAID 0 and 1 modes as well as port multiplier capability with commandbased and FISbased switching for connecting multiple external hard drives to a host PC through a single SATA connection.