BTX-Atlona 2 Gang Black Aluminum plate with HDVS HDBaseT Transmitter, Custom Cover Plate, Buttons Hidden. Allows advanced HDMI displays to easily switch between HDMI sources (computers, Blu-ray players, or document cameras) and legacy VGA computers. In a simple system HDVS can function as a complete input and control module; as part of larger and more complex applications HDVS enables HDMI and VGA/analog audio input to larger HDMI/HDBaseT switchers.