USB CABLE 3.0 factory PRODUCT FEATURE 1.Add extra 3.0 USB ports to any PC with this dual USB 3.0 to motherboard Y adapter cable with PCI rear bracket. 2.Features one 20-Pin IDC motherboard Header on one end, which fans out to two USB 3.1 Type-A Female 3.Capable of supporting USB 3.0 date transfer rate of 4.8Gbps, when used with a USB 3.0 host and device 4.Backwards compatible with USB 2.0&1.1 5.50cm(18inches) cable with PCI bracket, extend your USB 3.0 on the motherboard to the back of your desktop case 6.Connector: USB 3.0 20-pin header to 2 x A Female 7.Data transfer speed: 4.8Gbps PRODUCT DETAILSUSB CABLE 3.0 factory website:http://www.otechkabels.com/usb-cable-3-0/