Startechcom usb stereo audio adaptors startechcom icusbaudiob this usb audio adaptor from startechcom converts a usb port to an audio port enabling you to add a headset and microphone to your computer without the need to unplug other devicescompliant with usb 20 and usb audio device specification 10 the usb audio adaptor couldnt be simpler to install its as easy as connecting the adaptor to an available usb 20 port then connecting your audio devices to the provided 35mm audio po