Monoprice 108200 HDMI Over CAT5E/CAT6 Extender Wall Plate with LED indicator (Pair)-Single-Port (1P), White Extend the range of your High Speed HDMI signal and keep the wiring hidden safely within your walls using this HDMI Wall Plate Extender To use them you need to run two Cat5e/6 cables through the walls Note that these must be CL2 rated for in-wall use and must be wired to the EIA/TIA-568B standard Next you plug the ends of each cable into the backs of the wall plates Make sure that the wall plate labeled "HDMI IN" is at the source side and the one labeled "HDMI OUT" is at the destination end