A communications jack includes a housing having a top surface, a bottom surface, first and second opposed side surfaces, and a plug aperture configured to receive a mating plug at a front of the housing. At least one of the first side surface, the second side surface, the top surface, and the bottom surface of the housing includes a first feature configured to engage a first mounting structure associated with a first mounting opening to mount the jack in the first mounting opening. One of the top and bottom surfaces of the housing includes a second feature configured to engage an adapter to mount the jack in a second mounting opening that is different than the first mounting opening.