DC Deep Channel Card Guides Bivar DC Deep Channel Card Guides feature three channels widths for 1/16th, 3/32nd, and 1/8th PCBs and are offered in 21 standard lengths from 2.5' to 8.0', in 0.5' increments. These components are rigid and strong while meeting a wide variety of PCB slot entry applications. The DC Series Deep Channel Card Guides are designed for quick installation, with effective retention and do not require any special tools or fixtures for installation. Ideal applications include computer, datacom, telecom, factory equipment, industrial controls, and defense and military.