This USB 3.0 pin header cable by Delock can be internally connected to a free pin header male port of your mainboard. It expands your system by two additional USB 3.0-A female ports which can be screwed by using the four available installation holes. This cable is most suitable for self-designed computer systems. Specification ? Connector: USB 3.0 pin header 19 pin female > 2 x USB 3.0-A female ? USB 3.0- A ports stacked ? USB 3.0- A ports with four installation holes ? Pin 11 = key ? Cable gauge: AWG 28 ? Data transfer rate up to 5 Gb/s ? Cable length: ca. 45 cm ? Colour: blue System requirement ? A free USB 3.0 pin header male port Package content ? USB 3.0 pin header cable Package ? Delock poly bag