ST9630-2M2S is developed on the basis of the chip scheme MARVELL 88SE9230, The product can extend SATA3.0 interfaces through PCIe interface of PC host. Compliant with SATA3.0 Specification and PCIe2.0 Specifications. Supports communication speeds of 6.0Gbps, 3.0Gbps, and1.5Gbps. Supports hot-plugging and heat-exchanging. Compatible with SATA 6G, 3G and 1.5G hard disk drives. Supports programmable transmission signal level. Supports Gen1i, Gen 1X, Gen2i, Gen 2m, Gen2X ,Gen3i. Supports 4 SATA ports. Supports AHCI 1.0 and IDE programming interface. Supports Native Command Queuing(NCQ). Supports Message Signaled Interrupt(MSI). Supports Port Multiplier FIS-based switching or command-based switching. Supports Control, Bulk, Stream, Interrupt, Isochronous. Supports Partial and Slumber Power Management states.