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.
Fire TV Cube - 5 Reasons Why You Might Want To Upgrade NOW! — WhatGear, Tech Reviews
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Our fastest-ever streaming media player - Brings lightning-fast app starts with an octa-core processor and is 2X as powerful as Fire TV Stick 4K Max.
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