The SATA2-041 is a e SATA PCI Express card provides two e SATA ports & one IDE/PATA port. The SATA2-041 fits in the PCI-e slot (36pin) providing two external SATA one internal IDE slot. Specification: Supports 3.0 Gbps e SATA interface. Supports two independent e SATA channels separate logic & FIFO. Supports NCQ on e SATA ports. Supports Hot plugging on e SATA ports. Supports SATA II Gen 2m & Gen 2i external SATA. Supports UDMA6 transfer mode on IDE port. Supports transfer rate of 133MB/s with IDE (Ultra ATAII). Supports up to 4 storage devices. Supports PCI Express 1-Lane 2.5 Gbps interface (PCI-e x 1/36pin)