... full HD Full frame each channel Production Description u 4/8/16CH SDI 1080P video inputu 4/ ... 4CH simultaneously playbacku Search: time/calendar,events(alarm, motion)u Backup: USB, DVDRW(Sata), IE, CMS; support multi-file, ... motion, sensorFile managerLock, unlock, reserving time, redundancyPlaybackPlayback4CHSearchTime, motion, sensor, single or multi-channelFunctionPlay, Pause, FF, FB, Shuttle control ...