CAT5 Surface-Mount Block, T568A, 1 Jack * The easy and convenient way to make RJ-45 to 110 connections. * Only 1"H x 2.75"W x 2.25"D (2.5 x 7 x 5.7 cm). * Includes two peel-and-stick adhesive strips for easy mounting. * The base has an opening for rear cable feed-through.