Serial ATA (SATA) Host Controller chip with 32-bit interfacing Compliant with Serial ATA 1.0 Specification. Supports two independent Serial ATA ports with data transfer rate up to 1.5Gb/s Built-in 256 bytes FIFO per port for fast read/write operations. RAID Function Optional: Supports RAID function 0 and 1. Adjustable stripe side for RAID 0. Supports co-exist RAID set and Non-RAID HDD. Allow HDDs with different sizes to be configured in a RAID set.