and high quality. Express card to USB 3.0 2 port adapter. Suitable for notebook computer (or contain ExpressCard Slot Computer). 2 USB 3.0 specifications port. Suitable for laptop and desktop with 34mm/54mm slot. Transfer rate 5Gbps. Support USB series specifications (Compatible USB 1.1 Full-Speed / 2.0 High-Speed). Support Super-Speed 5Gbps, High-Speed 480Mbps, full-speed. 12Mbps and low-speed 1.5Mbps data transfer rate. Support Microsoft Windows. colour:Silver + black Material:PC+ metal Size: 75×34×3mm/2.95×1.34×0.12in (Approx.) Package Contents: 1 x PCI-E to USB 3.0 Express card adapter 1 x CD driver Only 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.