Compatibility: This box composites CVBS BNC analog video signal input and 3.5mm aux audio signal input to HDMI output with a 720P/1080P switch. Don't use it to connect your antenna and cable TV. This BNC to HDMI video converter can convert 480I (NTSC) / 576I (PAL) format audio and video signals to 720P or 1080P HD HDMI signal, but also can input high-definition format HDMI signal.
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