- Hall Research Technologies 
 Hall Research Technologies is one of the leading manufacturers of audio/video and automation products, including video switchers, matrix switchers, video splitters, extenders, and components to send video and audio, video and power, video and RS232, and HDMI/DVI over Cat5 and Cat6
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 Note: Hall Research Technologies is one of the leading manufacturers of audio/video and automation products, including video switchers, matrix switchers, video splitters, extenders, and components to send video and audio, video and power, video and RS232, and HDMI/DVI over Cat5 and Cat6
						
						
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