Cliff xlr shell blanking plate for feedthrough connectors metal shell cliff cp30241m p a blanking plate mounted in a metal xlr format body shell with countersunk mounting holes part of the ft series from cliff p p cliff s ft series of feed through connectors is perfect for custom i o 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 ext