Digital Video Recorders
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Digital Video Recorders come in various channel camera inputs. starting with 1 channel DVR and can go up to 64 channels. The DVR has a built in multiplexer which will allow you to view all of the camera channels at one time on one screen. and all the video is saved to the hard drive separately. Therefore, the conventional way of connecting a switch, quad, or multiplexer is not required with a DVR.
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