Description: Transfer rate: up to 5 Gbps when connected with a USB 3.0 compliant host and device Backward compatible with USB2.0,1.1 version; Interface: USB 3.0 motherboard 20-pin female head. Easy to extend your 20pin cable. Support WINDOWS2003 / 2007 / XP / Vista / WIN7 / WIN8, support plug and play; Apply to extend the front panel Specification: Material:Plastic Color:Blue Cable length:0.5m/1.6ft Package Includes: 1xUSB3.0 20 Pin Extension Cable