From Liberty AV: HDMI 2.0b (18Gbps), HDCP 2.2 and DVI compliant, supports HDR, Passes native HDMI embedded audio, Down mixes to 2 channel stereo (analog) and multi channel audio (optical) simultaneously from up to 6 channels of multi channel audio, Stand alone signal sensing controller powers on/off display when signal is presented/removed, Automates room peripherals when video signal is introduced to system via RS232 or CEC and Contact closures and Passes HDMI & HDMI 2.0 signals up to 18G 4K60 4:4:4.