Motherboard USB 3.0 20-Pin Header Extension Cable Compatible with USB 3.0 specification, data transfer speed up to 5Gbps Backward compatible with USB2.0,1.1 version Support WINDOWS2003 / 2007 / XP / Vista / WIN7 / WIN8, support plug and play Cable length is 1.64ft Connector A - 20pin female header Connector B - 20pin female header