A:Answer 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 S84D are capable of Auto Low Latency Mode (ALLM), Dynamic Metadata (HDR10+), Variable Refresh Rate (VRR), and 4K@120Hz. HDMI port 3 further supports eARC.
~ Samsung Specialist
