The Club 3D CAC-1375 ultra-high-speed HDMI 2.1 certified cable is built to handle the highest-quality video and audio signals. The increase in maximum bandwidth compared to previous versions is achieved by increasing both the bitrate of the data channels (from 6 Gbps to 12 Gbps) and the number of channels (from 3 to 4). This allows support for resolutions up to supports 4K at 120 Hz or 8K at 60 Hz!