? Features Compact & lightweight USB 3.0 female & eSATA to 54mm Express card Compatible USB2.0 & USB1.1 High speed data transmission Differential voltage data transmission lines Strong anti-electromagnetism interference Supports plug & play General Specs Interface USB3.0 & eSATA Chip ASM+JSM Date Transfer Rate ?5.0Gbps (USB3.0)? 3.0Gbps (eSATA) Plug & Play Yes Compatibility Laptops without USB3.0 interface?