The Corning CCH-03U Closet Connector Housing accepts 6 CCH connector panels, cassettes or modules. It features a removable tinted polycarbonate front door, slide-out tray and see-through, removable top covers. In addition, the housings accept CCH cassettes and CCH. Designed based on thousands of hours of customer feedback, Corning closet connector housings (CCHs) offer more than two dozen innovative features that make installation and troubleshooting of fiber optic connectivity faster, easier and more cost-effective. Designed for fiber cable routing and strain relief, port labeling and termination, the.