The 12-Port ST to ST Optic Fiber Feedthru Rackmount Cabinet from Camplex is an enclosed rack mount optical fiber interface cabinet that provides a safe and clean environment for sensitive optical cables, breakouts, and splices. This cabinet is a heavy gauge, steel rack box with a removable cover and high quality, zirconia sleeve, fiber connectors for precise optical alignment and low insertion loss for long lasting durability. Metal dust covers are provided. With twin access points on the rear to feed your fiber bundles into, this cabinet is also equipped with cable management and cable routing accessories to limit bend radius and add strain relief. It is designed to fit in a standard 19" rack/cabinet.