Optimal Shop New 2 Port eSATA e-SATA 3.0 & 2 Port SATA 3.0 Serial ATA to PCI-E PCI Express Card Adapter Converter 6.0Gbps ASM1061 Chipset A super fast and high-capacity data transfer solution.Stable and reliable chipset ASMEDIA ASM1061 . Compliant with Serial ATA Revision 3.0 specification.Compliant with Single-Lane (x1) PCI Express specification revision 1.0. Data transfer rate up to 750MB/s (6.0Gbps).Supports 2.5Gbps PCI-E bus with full duplex channel.Supports two independent SATA 3.0 channels. (Supports 2 SATA devices at the same time.)Supports ATAPI devices: CD-ROM, DVD-ROM, etc.No external power required for the card.Supports hot-swapping.Supports boot function. Operating System: Windows XP, Vista, 7, 8, Server 2003 & Server 2008.