"[Solution] Provides a convenient solution to convert the available USB 3.0 header of a motherboard to a USB 3.1 header; [Connectors] Connector A (motherboard): 19/20 pin internal USB 3.0 female connector Motherboard Connector B (Front Panel): Front panel USB 3.1 A-Key 20-pin female connector; [Compatibility] Compatible with all popular motherboards with 19-pin USB 3.0 header. (Note: Does not work not with USB 2.0 header.) Support Systems: WINXP/WIN7/WIN8/WIN10 32/64BIT/MAC/Linux; [Parameter] Dimension(LxWxH): 25x24x10mm(0.98x0.94x0.4inch), Gauge: Black PCB premium high performance, data transfer speed is up to 10Gbps, plug and play (no need to install any drivers.); [Note] There are two types of adapter, including standard and reverse type. Must install the adapter step by step to avoid shorting the pins and damaging the motherboard. Please remove the power cable and wait 10 seconds before installation. Type: Motherboard Header Mount Adapter Model: Reverse Type Support Systems: WINXP/WIN7/WIN8/WIN10 32/64BIT/MAC/Linux; Dimension: 25x24.1mm Material: PCB + metal color: black Package Contents: 1 x HP73B motherboard header Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3 cm."