PCI-E To 4 Ports SATA 3.0 ESATA PCIE SATA3 6Gbps Expansion Card PCI-E Adapter Extend more SATA 3.0 data interfaces, and support more storage devices. Meet for PCI Express 2.0 and SATA revision 3.0 Speed for SATA III up to 6.0G bps, compatible with SATA I and SATA II PCI Express speed rate to 2.5G /S, double channels Completely support for SATA, for immediate working with plug Speed for SATA 3.0 -- 6Gbps Support IDC/AHCI Model Hot-plug capability Support Native Command Queuing (NCQ) Support for Windows, Linux and for Mac OS X 10.6 and above (Note: It is not support windows 7 and windows 8) Support for 2TB hard disk Supports PCI Express x1, x2, x4, x8, and x16 Lane