Features: Express Card Expresscard 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 Windows. Specification: box: No Color: Silver Item size: 75*33*5mm Net weight: 25g Package weight: 35g Packing content: 1 x ExpressCard 1 x USB 3.0 & SATA Driver