Products / DVR / IVS System   IVS System / 4CH H.264 DVR / 8CH H.264 DVR / 16CH H.264 DVR / Older Models / AVD744 4CH H.264 IVS DVR   AVD744C 4CH IVS Full D1 Realtime   AVC799B 16CH IVS Network DVR   AVC794C 4CH IVS Full D1 Realtime