Certified by the Ultra High-Speed HDMI Certification Program, guaranteeing optimal quality and performance. Full 48 Gbps bandwidth and Dynamic HDR allow for HDMI 2.1 exclusive features such as 8K at 60 fps and 4K at 120 fps. VRR Support: The Variable Refresh Rate feature allows a TV or monitor to adjust its refresh rate in real-time to the frame rate output by a gaming console or PC.