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Yes all 4 ports are 2.1.
Sorry, there was a problem. Please try again later.According to what I have read, although advertised as HDMI 2.1, none of the ports can support 4k content up to 120 Hz, which means they don't have HDMI 2.1 bandwidth. This is what I found in my research on an internet tv reviews site. Unfortunately I can't give the website because of guidelines here. I hope this helps.
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