Good Connections® fiber optic couplers allow you to connect two fiber optic patch cords together easily and without tools. The couplings can either be attached via the flange with self-tapping screws (not included) or clipped in via snap-in mounting. Technical specification: https://elecena.pl/product/18240895/lw-k204-optical-fiber-coupler-lc-upc-lc-upc-duplex 2021-05-02 https://elecena.pl/product/18240895/lw-k204-optical-fiber-coupler-lc-upc-lc-upc-duplex 2022-12-28