The Heritage Audio HABPNL is a single-slot 500 Series rack panel designed to cover empty rack slots and provide a clean, sleek appearance for audio engineers, musicians, and home recordists in mobile-recording and mixing systems, commercial facilities, and personal studios. It features metal construction for long-lasting durability and pre-drilled screw holes for ease of installation and removal. It fills one empty slot in a 500 Series equipment rack and inhibits access to your gear’s internal components.