Features:, Versions in singlemode and multimode, For fiber assembly 0.9 mm and cable assembly up to 3.2 mm, Multimode as 50 µ, 62.5 µ, 200 µ and 980 µ, Singlemode as 9 µ, Designation: ST coupling, multimode and singlemode, ceramic sleeve, metal housing, Installation type: single-hole installation, Installation dimension: Z64