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Officially, per specifications and confirmed by two product managers from Onkyo, Ports 1-3 support 4K120. Remaining ports do not.
Sorry, there was a problem. Please try again later.On the TX-RZ50 does support 4k 120hz on all hdmi inputs as long as they are set to 8k standard.
Sorry, there was a problem. Please try again later.Some are saying the first 3 inputs are 48gbps bandwidth and the last 3 are 24gbps. I can not confirm this however. https://www.youtube.com/watch?v=BKOGwSN_VyQ&t=400s @1:08, this reviewer starts to mention this as well
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