A ferrule for an optical connector includes a body, a cavity extending into the body from a back end of the body, and first and second groups of micro-holes extending into the cavity from a front end of the body. The cavity includes at least one bottom surface extending under an opening in a top surface of the body and below a first plane that extends through or below the first and second groups of micro-holes. The cavity also includes a divider extending under the opening in the top surface of the body, with the divider having a divider surface positioned above the first plane such that the divider surface is offset from the at least one bottom surface.