The Camplex CMX-MPR-4RU 4RU adjustable fiber enclosure for 19 or 23-Inch racks accommodates 12 modules in a space-saving, low-profile design, providing bend radius protection and enhanced strain relief. Housed in a black powder-coated steel enclosure, fibers can be easily accessed on a sliding tray. D shaped entry points at front and back allow for easy jumper and backbone cable management. A clear hinged front panel and plastic cable rings aid in visual inspection and cable management. Compatible with Camplex CMX-MP Fiber Adapter Plate Modules.