The AudioQuest Root Beer Active Optical HDMI Cable is an active optical cable that provides audio/video and eliminates multiple forms of degradation over distance. It’s powered by the HDMI port, requiring no AC adapter. Further, optical fibers provide total RF immunity and galvanic isolation for the audio/video signal, which are important advantages in the fight against radio-frequency noise. As with TOSLINK and other optical cables, optical fibers do not pick up or transmit induced RF noise. Also, the cable’s eARC and communication conductors are direction-controlled to minimize RF noise that hurts the performance of active circuits.
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