New Panel Plug-in Connector Computer Mainboard Usb3.0 19/20pin To

USB2.0 9 Pin To USB3.0 19pin Front Panel Plug-in Connector Computer Motherboard USB 3.0 19/20pin To USB2.0 9pin Adapter Converter. Connect your USB 3.0 20pin device to the USB 2.0 motherboard or connect your USB 2.0 9pin device to the USB 3.0 motherboard.