4-Port True 4K Hdmi Switch with Dual Output. The Aten VS482B Switch is an ideal solution for application requiring superior video resolution of True 4K when connecting 4 Hdmi A/V sources to 2 Hdmi displays. Complying with Hdmi standards the switch’s 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 RS-232 commands enabling users to effortlessly select desired input. Equipped with Edid Expert™ the VS482B benefits users with optimum Edid settings for smooth power-up and highest-quality display across different screens. Featuring above functionalities provides you a practical solution for auditorium home theater meeting rooms trade shows shopping centers and more.