... real time Mini CCTV DVR kits,4ch Digital Video recorder kits, Stand alone DVR kits, CCTV DVR kits1.4ch D1 real time recording2.Video input:4ch BNC,Video ... ,alarm trigger recording modeRecording playbackSupport 1to 4 ch playback simultaneouslyBackup waySupport HDD,Network,USB,USB- ... RW backupModelDH8704Video storageHDD ,networkVideo input4ch BNCAudio input1 ch RCAVideo output1ch BNC,1ch VGA(support 800* ...