Express card Expresscard A 2-port USB 3.0 adapterSuitable for laptop (or include express card slot)2 USB 3.0 ports specifications: Suitable for laptop and desktop with 34mm / 54mm slot5Gbps transfer rate: Compatible with USB Series specifications (Compatible with USB 1.1 Hi-Speed / 2.0 Hi-Speed), Support 5Gbps super speed, 480Mbps high speed, full speed Data transfer speed of 1.5Mbps and low speed of 12Mbps.Microsoft Windows supportSpecification:Chip: FL1000 / NEC D720202colour: silverMaterial: ABSsize: 75x34mmPackage Contents:1 x Express CardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.