Everything there is to know about the HDMI IN port on the Fire TV Cube 3

One of the big changes on the 3rd-gen Fire TV Cube, compared to the last two models, is the addition of an HDMI IN port on the back that lets you connect any HDMI device to the new Cube. hasn't said much about the new port, other than saying it's for cable and satellite TV boxes.

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Everything there is to know about the HDMI IN port on the Fire TV Cube 3