4x1 HDMI 2.0 Switcher Input: 4 x HDMI 2.0 Output: 1 x HDMI 2.0, 1 x Audio Return Channel (ARC) HDCP 2.2 compliant, CEC, EDID, Audio de-embedding Resolution up to 4Kx2K@60Hz 4:4:4 HDR Control via front panel, IR, RS-232, Auto-Switch The 1T-SX-654 is an ultra-thin auto switcher with four HDMI video inputs and one HDMI output with resolution support up to 4Kx2K@60Hz 4:4:4 HDR. Control options include auto-switch mode, which automatically switches to an HDMI input as soon as a new source is connected, or control via the front panel source button, RS-232 or IR (remote control included). Audio functionality includes multi-channel support, de-embeded digital stereo audio to provide an analog output, or an audio return channel (ARC) for transmitting audio back to the HDMI input from the connected display.