Features: Made of PCB material, 100% brand new and high quality. There are five USB 3.0 interface and a 19 pin interface in front for connecting the panel, which can connect any USB 3.0 device to a PC Using the latest generation of USB technology, with up to 5Gbps enhanced transmission rate, can transmit data files at a very fast speed. It is powered by SATA 15 pin power connector. The expansion card has strong compatibility, suitable for all Express 34mm,Express 54mm slots Support Control mode, Interrupt mode, Bulk mode,Synchronous mode the four USB standard data transmission. Specifications: Material: PCB Size: Approx. 12*6*1.8cm/4.72*2.36*0.71inch Color: As is shown on the photo Transmit Rate: Low-speed(1.5Mbps)/Full-speed(12Mbps)/High-speed(480Mbps)/Super-speed(5Gbps) Interface: 5*USB interface Package list: 1 x USB 3.0 Extension Card 1 x CD Driver 1 x The instructions 2 x Screw 1、Made of PCB material, 100% brand new and high quality. 2、There are five USB 3.0 interface and a 19 pin interface in front for connecting the panel, which can connect any USB 3.0 device to a PC 3、Using the latest generation of USB technology, with up to 5Gbps enhanced transmission rate, can transmit data files at a very fast speed. 4、It is powered by SATA 15 pin power connector. 5、Support Control mode, Interrupt mode, Bulk mode,Synchronous mode the four USB standard data transmission