Long time record Video Inputs: 4 Channels OEM,ODM CE,FCC,ROHS 4-Channel in 1 card, audio and video real-time synchronousAdopt ... MJPEG-4 compression mode4-channel video per card (inc audio)Total Resource ... at 25F/SProvide 16-channel recording, 1 system supports 4 cardsResolution:768*576 (PAL),640*480 (NTSC)Support multi-level ...