2 Port SATA 3.0 & 2 Port eSATA e-SATA 3.0 Serial ATA to PCI Express PCI-E Card Adapter Converter 6.0Gbps ASM1061 Chipset w/ Low Profile Bracket 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). Low Profile Bracket available.