Monoprice 108434 Keystone Jack/Banana Jack With Black Ring - White - Screw Type, For Home Theater, Speaker Wire And More Keystone jack to be use d with keystone wall plates or panels Matches white wall plates Black plastic color code ring Front accepts banana plugs spades or bare wire Keystone jacks and wall plates are used when you desire to run wiring in-wall to create a cleaner less cluttered media room