A:Answer Hi Bob, Thanks for asking! HDMI 2.1 is a somewhat complicated specification, so to better help our customers with their TV decision-making, we highlight the specific features supported by each TV model. All 4 HDMI ports on the QN800A are capable of Auto Low Latency Mode (ALLM), Dynamic Metadata (HDR10+), Variable Refresh Rate (VRR), High Frame Rate (HFR), 4K@120Hz (All HDMI), as well as 8K@60Hz. HDMI port 3 offers Enhanced Audio Return Channel (eARC). ^Val
