Syba SD-PEX20158 2 Port USB 3.0 PCI-Express 1.0 x1 Card Step into the future, the USB 3.0 future that is, with the SD-PEX20158. Add two USB 3.0 ports to your computer and enjoy up to 5Gbps of throughput speed for video backup and data intensive applications. The SD-PEX20158 is 10 times faster than USB 2.0 High-Speed (480 Mbps) and its also backward compatible with current USB 2.0 devices. This controller card is simple to use, just plug it in and turn on your computer. Specification Etron Chipset EJ168A Compliant with PCI-Express Base Specification 2.0 Internal HDD Power Connector for Supply Extra +5V Power to USB Ports Backward Compatible with USB 2.0 High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed ( 1.5 Mbps) Interface Full & Low Profile Brackets What's in the Box USB 3.0 PCI-e x1 Controller Card Driver CD User Manual Low Profile Bracket s2-portus 3.0 pi-expressrd, x1, etronipsetej168itfull&loprofilerketsmodelsd-pex20158