Compliant with ExpressCard/34 standard Compatible to 1-Lane (x1) PCI-Express Throughput Fully Plug & Play and Hot Plug compatible Driver supported MS Windows98/98SE/ME/2000/XP/XP/Vista, Linux, Mac OS Support 1-independent SATA Port Compliant with Serial ATA II Specification Data Transfer up to 3.0Gbps Support Native Command Queue (NCQ),FIS Based Switching with Port Multiplier All External Ports are compatible to eSATA specification