1. 4CH Full D1 Digital Video Recorder Real-time DVR 2. Support a 2TB HDD, with VGA 3. RS485, mouse, USB, 4CH Full D1 Digital Video Recorder Real-time DVR FeaturesWith H.264 High efficiency Video CompressionSupport 4CH playback at same time.With total 100fps support 4 D1@25fpsWith a LED display, show the time, network, alarm, display, power and so on state.Support Symbian, S60V3/V5, Windows mobile ...