Cliff xlr shell usb 20 amp 30 feedthrough connectors plastic shell cliff cp30208nx a usb feed through connector mounted in a plastic xlr format body shell part of the ft series from cliffcliffs ft series of feed through connectors is perfect for custom io configurations on wall plates rack panels etc because all of the connectors in the series are housed in a standard xlr shell and fit into a standard xlr panel cutout standard cables are used for external and internal connect