HDMI 2.1
A High-Definition Multimedia Interface standard with bandwidth increased to 48 Gbps, supporting 4K at 120 Hz, 8K at 60 Hz, VRR variable refresh rate and ALLM auto low latency mode. It is a key interface specification for next-generation gaming televisions.
Timeline (last 90 days)
On some OLED TVs, only some HDMI ports support full-spec 2.1, so buyers need to confirm before purchasing.
The widespread adoption of the HDMI 2.0/2.1 standard improved frame synchronization precision between playback devices and displays and reduced crosstalk.
The Roku TV is equipped with four HDMI 2.1 ports.
HDMI 2.1 is a modular specification; manufacturers can selectively implement feature subsets, and not all TVs labeled HDMI 2.1 fully support VRR.
All Facts (4)
On some OLED TVs, only some HDMI ports support full-spec 2.1, so buyers need to confirm before purchasing.
50%UnverifiedThe widespread adoption of the HDMI 2.0/2.1 standard improved frame synchronization precision between playback devices and displays and reduced crosstalk.
50%UnverifiedThe Roku TV is equipped with four HDMI 2.1 ports.
50%UnverifiedHDMI 2.1 is a modular specification; manufacturers can selectively implement feature subsets, and not all TVs labeled HDMI 2.1 fully support VRR.
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