No lag, No loss of pictures---HDMI CABLE NOT INCLUDE! HDMI splitter box supports all kinds of video formats, like 3D, 1080p, 4K x 2K@30hz resolution, and also HD audio. If your HDMI cable is not HDMI cable 2.0, you could adjust the resolution on your 4K HDMI Source device to 1080P (1920 1080) to match the specification of your HDMI cable, Or use the proper HDMI cable to connect.
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