Install an in wall HDMI&174; Connection Port and dual RCA Ports, for Neat, Professional Quality Video Installations. The 4XWALLHDMIRCASingle Outlet Female HDMI&174; Wall Plate offers an in-wall HDMI digital video receptacle that provides easy connections between a High Speed HDMI video output or Standard HDMI video output, and HDMI-equipped projectors, remote displays, or home theaters. The 19-pin HDMI wall plate eliminates cable clutter.