I'm extending my network from one end of the house to another, and want to install a socket on the wall at each end. Ideally I would like something which allows me to plug an ethernet cable into the back of the plate and another one into the front. Does such a thing exist? If so, are they OK or is the connection a bit dodgy? Otherwise, what's my alternative and how do I wire it up? Are different faceplate sockets optimised for specific cables (ie. Cat5e) or will they work perfectly with anything?