The ATEN VS482B Switch is an ideal solution for application requiring superior video resolution of True 4K when connecting 4 HDMI AV sources to 2 HDMI displays Complying with HDMI 20 standards the switchs Audio Return Channel ARC function allows users to send audio without having to attach a separate audio cable Furthermore the VS482B offers switching methods between HDMI sources by front panel pushbuttons IR remote control and RS232 commands enabling users to effortlessly select desired input Equipped with EDID Expert the VS482B benefits users with optimum EDID settings for smooth powerup and highestquality display across different screens Featuring above functionalities provides you a practical solution for auditorium home theater meeting rooms trade shows shopping centers and more EDID Expert selects optimum EDID settings for smooth powerup highquality display and use of the best resolution across different screens Audio Return Channel ARC function connects an HDMI cable to the ARC port to send audio from your source device to your audiovideo receiver Features. Allows up to 4 HDMI AV sources to be connected to 2 HDMI displays. Superior video quality up to 4096 x 2160 3840 x 2160 60Hz 444 HDR supported. HDMI 20 3D Audio Return Channel Deep Color HDCP 22 compliant. Supports Auto Switch the VS482B automatically switches to a newly pluggedin source. OSD for system configuration settings and information display. Switching between HDMI input sources via front panel pushbuttons IR remote control and RS232 commands. Builtin bidirectional RS232 serial control port for highend system control. HDMI audio can be extracted to stereo audio and digital audio opticalcoaxial outputs. Supports 51 channel audio outputSpecifications. Input LED Green x 4 HDMIIn. Audio LED Green x 1 ARC ONOFF. Power LED GreenOrange x 1 Power ONOFF. Video Input Port Selection Push button x 4 HDMIIn. Mode Selection Push button x 1 ARC ONOFF. Power Push button x 1 Power ONOFF. Interfaces 4 x HDMI Type