bnc to hdmi converter full hd 4k cvi/tvi/ahd+cvbs,1080p/720p/4k/8mp/5mp/4mp/3mp hdmi converter adapter for monitor hdtv dvrs centropower <br><b>full hd 4k cvi/tvi/ahd+cvbs to hdmi converter</b> <br><br>input port:one channel cvi/tvi/ahd/cvbs bnc input <br>output port:one channel cvi/tvi/ahd/cvbs bnc output,one channel hdmi output <br>cable length:500~700meters, different resolution,different transmission distance <br>external power supply:dc 5v(1a) <br>working temperature :-10°c---+50°c <br>working humidity:30%-90% <br>dimension:109mm x 94mm x 25mm <br>weight: 0.18kg <br><br><b>75ω/hi-z impedance switch:</b> <br>when the in port of the converter is connected to the camera, and the out is not connected to the dvr,please set the impedance switch to 75ω. <br>when the in port of the converter is connected to the camera and the out port is connected to the dvr,please set to hi-z.