The 4 port fiber termination box is designed to joint optical fiber cable and pigtail or splitter, and realize cable direct connection and branch connection. The plastic box offers the functions of fiber mechanical/fusion splice, splitting, and distribution suits both indoor and outdoor. At the core of this system's precision and reliability are Fiber Optic Splice Boxes—the unsung heroes that house and protect the delicate junctions where fiber cables are joined. The integrity of these enclosures is paramount to network performance. for the protective connection of optical cables and distribution pigtails. FOSC-450 gel splice closures have the same splice capacity as FOSC-400 closures and feature the same reliable and easy-to-use dome-to-base clamping system.