The Club 3D CAC-1378 Ultra High Speed HDMI™2.1 Certified Cable is built to handle the highest quality video- and audio- signals. HDMI™2.1 Increased Bandwidth to 48Gbps. The increase in maximum bandwidth compared to previous versions is achieved by increasing both the bitrate of the data channels (from 6Gbps to 12Gbps) and the number of channels (from 3 to 4). This allows support for resolutions up to 4K at 120Hz or 8K at 60Hz!