... Standalone CCTV 4CH/8CH DVR Recorder H.264 compression, high definition4CH Full D1 Real-time (8 CH: 4CH x ... USB hard disk, USB recorder and network backup.Multitask, local multi-screen real-time preview, record, playback, network ... transmission and backup in the same time.Remote control DVR to monitor and playback, remote ... within warranty period. 4Channel 8Chanel Real Time Recorder DVR