... POE NVR3204/3208/3216V NVR3204/3208/3216V Dahua Mini Portable Vertical DVR for IP Cameras> Up to 4/8/16 ... Detection, MD Zones: 396(22×18), Video Loss & Camera BlankAlarm Input3 channelRelay Output1 channelPlayback & BackupPlayback Channel1/42001-4-81 ... Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoomBackup ModeUSB ...