The gray Kramer Passive Wall Plate is a wall plate insert with pass-through connectors for computer monitors, HDMI, composite video, and stereo audio.
Its front panel has 15-pin HD, HDMI, 3.5mm mini jack, and three RCA connectors. Its rear panel has 15-pin HD, a cable with HDMI, 3.5mm mini jack, and three RCA connectors.
15-pin HD connector for computer monitors.
Yellow RCA connector for composite or SDI video.
White and red RCA connectors for unbalanced stereo audio.
3.5mm mini jack for analog stereo audio.