Ma adapter a MTRJ amagwiritsidwa ntchito pazolumikizana ziwiri za fiber optical ndipo motero ndi oyenera kugwiritsa ntchito kachulukidwe kwambiri.Adapter ya MTRJ imabwera mumtundu wakuda.Adapter ya MTRJ yokhala ndi nyumba ya kalembedwe ka SC imapezekanso pamapulogalamu omwe SC amafunikira.