This fiber optical connection box by Delock can be used for wall mounting and can accommodate up to four SC Simplex or LC Duplex fiber optical couplings. Specification https://elecena.pl/product/18438269/86843-fo-wall-mount-outlet-4-x-sc-simplex-lc-duplex 2021-05-12 https://elecena.pl/product/18438269/86843-fo-wall-mount-outlet-4-x-sc-simplex-lc-duplex 2022-06-04