Amazon.com: KAMING 2-in-1 USB C Type C/Micro USB Android Phone to TV HDMI Cable, MHL to HDMI Adapter 1080P HD HDTV Mirroring & Charging Cable for All Android Smartphones Tablets to TV/Projector/Monitor,6.6ft :
An HDMI Monitor From Your Phone | Hackaday
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That Lenovo tablet with HDMI input is official, and it's a monster media machine
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