Cliff xlr shell usb 20 amp 30 feedthrough connectors metal shell cliff cp30208nm a usb 20 a to usb 20 a feed through connector mounted in a metal xlr format body shell with countersunk mounting holes 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 ca