12 PORT SC/UPC fiber adapter panels/Face plates, are loaded with 6 Duplex single mode SC connectors, giving a total of 12 ports. Plate Height 5 1/8" inch Plate Width 1 3/16" inch Center pin to Center pin 4 5/8" inch. Fits most brands Fiber Optic patch panels and wall panels. High Quality, Ceramic ferrule.... High Quality....Guaranteed....Dare to Compare!