A wall plate for covering an AC/DC wall outlet includes a generally rectangular or “designer” opening configured to receive the wall outlet. The wall plate includes one or more cord retention members. The cord retention member(s) protrudes from a front face of the wall plate. The retention member(s) protrudes far enough to allow the wall plate to seat on the outlet while a USB plug is in a corresponding DC outlet of the wall outlet. The retention member includes a slot configured to allow a mobile device-attachable plug to pass-through the slot in a first orientation but not a second orientation 90 degrees off from the first orientation. When the USB plug is in the DC outlet, it is in the second orientation relative to the slot.