The usb3splate 2 port usb 30 a slot plate converts the usb pins on the usb 30 motherboard header to 2 standard usb 30 a type ports the plate can be mounted on the rear panel of a computer case adding two usb 30 a female ports for simple connection to usb peripheral devices the usb 30 standard supports transfer rates of up to 5gbps and provides connectivity and support for older usb 20 480mbps and 11 12mbps devices