8K@60hz HDMI-Compatible 2.1 Switch 2-IN-1-OUT Hub Support HDCP SST Extended 4K@60hz The HDMI 8K switcher allow you to connect two HDMI source to one HDMI display Important Note:Two displays can't display simultaneously. Support 8K@60Hz,4K@120Hz,1080P@240Hz resolution, provide you with transfer rates up to 48Gbps and backward compatible with all previous HDMI standards. You need connect standard HDMI 2.1 cable to enjoy visual effects. Plug and Play: External 5V USB power required,Simply press the button to swap signal within one second and the indicator lights show the working status. one switch and three 8k hdmi cables(100cm) are included in each package.