Chipset: VIA ALI M5283 SATALink PCI Host Controller 2 internal ports, 1 external port (but the external port is sharedwith one of the internal port Parallel ATA interface Slot type: 32-bit PCI Provides two independent channels to connect up to two Serial ATA hard disk drives Supports Serial ATA data transfer rates up to 1.5Gbps independent 256-byte FIFOs per channel for host read and write Supports 32-bit wide PCI bus at 66MHz Lower pin count and voltage requirement, plus better cabling over traditional Parallel ATA make Serial ATA the controller of the future