... 1080P display Alarm, RS485, RS232, 1U SMART CASE Full D1 Realtime Dahua DVR recorderSpecifications1)4ch standalone H.264 DVR ... DVR0404HF-A 2)Full D1recording DVR 3)HD 1080P standalone H.264 DVR 4 ... Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom(any size)Backup ModeFlash ...