(1)The HDMI Audio extractor is of 1.4B and it supports 4K@30Hz at max. 4)The Audio extractor does not support HDMI ARC or Earc. And you can not connect the HDMI out to AV receiver for HDMI audio. These deivces support 4K out only when the display and connected devices is of being HDMI 2.0 compliant.
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