A connector apparatus (100, 200), comprising: a housing; a mounting plate (160, 260) to fixably attach to the housing, wherein the mounting plate (160, 260) has a central axis, a first end, a second end opposite the first end, a first lateral side extending axially from the first end to the second end, and a second lateral side extending axially from the first end to the second end, wherein the mounting plate (160, 260): a shoulder and a first receptacle to slidingly receive a first tab on an end of an arm (120, 220) coupled to a display, and wherein the shoulder extends laterally from the first lateral side to the second lateral side and the first receptacle extends axially into the shoulder; and characterized in that the mounting plate (160, 260) further comprises: a first ridge to seat in a recess on the end of the arm (120, 220), wherein the first ridge extends axially from the shoulder toward the second end of the mounting plate (160, 260) and wherein the first ridge has a first end axially adjacent the shoulder and a second end axially distal the shoulder, wherein the second end of the first ridge includes a step profile (141, 171) to engage a mating step profile (141, 171) on the end of the arm (120, 220). a housing; a mounting plate (160, 260) to fixably attach to the housing, wherein the mounting plate (160, 260) has a central axis, a first end, a second end opposite the first end, a first lateral side extending axially from the first end to the second end, and a second lateral side extending axially from the first end to the second end, wherein the mounting plate (160, 260): a shoulder and a first receptacle to slidingly receive a first tab on an end of an arm (120, 220) coupled to a display, and wherein the shoulder extends laterally from the first lateral side to the second lateral side and the first receptacle extends axially into the shoulder; and characterized in that the mounting plate (160, 260) further comprises: a first ridge to seat in a recess on the end of the arm (120, 220), wherein the first ridge extends axially from the shoulder toward the second end of the mounting plate (160, 260) and wherein the first ridge has a first end axially adjacent the shoulder and a second end axially distal the shoulder, wherein the second end of the first ridge includes a step profile (141, 171) to engage a mating step profile (141, 171) on the end of the arm (120, 220). a shoulder and a first receptacle to slidingly receive a first tab on an end of an arm (120, 220) coupled to a display, and wherein the shoulder extends laterally from the first lateral side to the second lateral side and the first receptacle extends axially into the shoulder; and characterized in that the mounting plate (160, 260) further comprises: a first ridge to seat in a recess on the end of the arm (120, 220), wherein the first ridge extends axially from the shoulder toward the second end of the mounting plate (160, 260) and wherein the first ridge has a first end axially adjacent the shoulder and a second end axially distal the shoulder, wherein the second end of the first ridge includes a step profile (141, 171) to engage a mating step profile (141, 171) on the end of the arm (120, 220).