The usb32dppro usb 30 to displayport multi monitor adapter functions as an external displayport video card turning an available usb 30 port into a displayport output with support for high resolution 2560x1600 video and 51 surround sound audio the usb 30 displayport adatper delivers a convenient high performance external video solution that makes it easy to add multi monitor capability to a usb 30 enabled desktop or laptop computer optimal performance from usb 30 backward compatible