... , USB, 4CH Full D1 Digital Video Recorder Real-time DVR FeaturesWith H.264 High efficiency Video CompressionSupport 4CH ... 100fps support 4 D1@25fpsWith a LED display, show the time, network, alarm, display, power and so on state ... ProcessorHigh performance embedded microcontrollerOperating SystemEmbedded LINUXSystem Resourcesmulti-channel real-time recording and playback, multi-channel net operation for ...