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Enjoy Your 4K Ultra HD Video Experience Cingk 3x1 HDMI Switch This 3 port switcher box is designed to extend your HDTV port to 3 HDMI inputs, allow you easily switch 3 HD sources to your HDTV with one cable, avoid frequently plug and unplug your multiple devices. Easy to Use and Switch: This switch is plug and play equipment. There is no extra setup in your TV or HDMI input devices. You can easily switch the device you want to display. Strong Compatibility: Our HDMI splitter switcher is suitable for computer, notebook, X-Box, PS3, PS4, TV Dongle, Nintendo Switch or TV BOX, Apple TV, Blu-Ray DVD and etc. 1. An external power adapter is highly recommended to use for the item. 2. Please tear insulating sheet before using the IR remote. 3. Make sure IR receiver light is not covered to avoid not being able to receive signal. 4. If the screen is flickering unexpectedly, the remote can be used to disable the intelligent identification signal source function. (Note: If the remote is missing, please hold the Switch button for 5s to turn off it.) 3X1 HDMI Switches Specification. HDMI version is HDMI 1.4. HDMI resolution: 24/50/60fps/1080P/1080i/720P/576P/480i, 24/30fps/2160P. Maximum transmission band width: 300MHz. Maximum working current: 350mA. Working temperature: 0 to +40℃. Package Included: 1 x HDMI Switcher. 1 x USB Power Cable. 5V1A power Adapter is Not Included. 1 x Remote Control with battery. 1 x User Manual.