The CDR-2104N by Crest Electronics Inc. of Greensboro, N.C., is a four-channel DVR. Some of the features included in this model include an Ethernet connection; 120 fps global display and recording rate, selectable up to 30 fps per camera; removable HDD; compact flash; remote access; PC player software; and one optional audio channel.
The CDR-2104N comes with what Crest calls its cool drive technology, which has been designed to operate at cooler and quieter levels than traditional units.
