Optimal Shop 2 Port USB 3.0 54mm Express Card NEC Chipset Adapter Converter Card Superspeed

Features:
Support Express card 54 slot. Support USB 1.1 / 2.0 / 3.0. Support USB 3.0 Specifications, Transfer rate up to 5Gbps. 2 X USB 3.0 specifications ports. Transfer rate up to 5Gbps. Support older USB series specifications (Compatible USB 1.1 / 2.0). Support transfer rate of 1.5/12/480Mbps, 5Gbps. With USB bus power for external AC power supply. Item size: 73*54*5mm. Net weight: 40g. Package weight: 49g. Package Contents Include?
1x 2 Port USB 3.0 ExpressCard/54mm 1 x Driver CD 1 x USB Cable