Express card Expresscard A 2-port USB 3.0 adapter Suitable laptop (or include express card slot) 2 USB 3.0 ports specifications: Suitable laptop and desktop with 34mm / 54mm slot 5Gbps fer 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 fer speed of 1.5Mbps and low speed of 12Mbps. support Specification: Chip: FL1000 / D720202 colour: silver Material: ABS size: 75x34mm Package Contents: 1 x Express Card Only the above package content, other products are not included. Note: Light 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.