Mountable connector assemblies and frames

A frame for holding an electrical connector body, the frame extending along a longitudinal axis and being configured to mount to a panel, the panel having a cut-out and a latch element projecting outward from a first side of the panel, the frame configured to move along the panel in a locking direction from an inserted position to a locked position, the frame comprising:

• a mating end configured to interface with the panel when mounted thereto;
• at least one tab extending away from the longitudinal axis, the tab being oriented to engage a second side of the panel when in the locked position;
• and
• a wing member extending away from the longitudinal axis and being oriented to move along the first side when moved in the locking direction, the wing member including an end portion and a latch opening configured to receive the latch element, wherein the wing member is configured to flex away from the first side when the end portion engages the latch element and resile toward the first side when the latch opening receives the latch element.