The PolyPhaser OFC-STMM1-MC0O is a fiber optic economy coupler. The OFC-STMM1-MC0O has ST connectors for simplex multimode fiber. It features zinc alloy body with ceramic sleeve and round thru-hole mount. The PolyPhaser OFC-STMM1-MC0O is one of thousands of fiber optic products in-stock and ready to ship.